In addition, the definition of "death" as cessation of all life, isn't scriptural. Adam "died" the moment he ate from the tree of knowledge. Every soul that survives physical death, disproves death is annihilation.
Adam did die the day he ate of the fruit. It's how the Bible uses the word day. David said,
For a thousand years in thy sight
Are but as yesterday when it is past,
And as a watch in the night.
Peter alludes to this,
8 But, beloved, be not ignorant of this one thing, that one day is
with the Lord as a thousand years, and a thousand years as one day.
The Holy Bible: King James Version, Electronic Edition of the 1900 Authorized Version. (Bellingham, WA: Logos Research Systems, Inc., 2009), 2 Pe 3:8.
Adam lived for 930 years, just short of one day. This is both the ancient Jewish and early Christian understanding.
29. And at the close of the nineteenth jubilee, in the seventh week in the sixth year (930 A.M.) thereof, Adam died, and all his sons buried him in the land of his creation,27 and he was the first to be buried28 in the earth. 30. And he lacked seventy years of one thousand years; for one thousand years are as one day in the testimony of the heavens and therefore was it written concerning the tree of knowledge: "On the day that ye eat thereof ye will die."29 For this reason he did not complete the years of this day; for he died during it.
Book of Jubilees
Irenaeus, Against Heresies, Book 5, Chapter 23
CHAP. XXIII.—THE DEVIL IS WELL PRACTISED IN FALSEHOOD, BY WHICH ADAM HAVING BEEN LED ASTRAY, SINNED ON THE SIXTH DAY OF THE CREATION, IN WHICH DAY ALSO HE HAS BEEN RENEWED BY CHRIST.
1. He had indeed been already accustomed to lie against God, for the purpose of leading men astray. For at the beginning, when God had given to man a variety of things for food, while He commanded him not to eat of one tree only, as the Scripture tells us that God said to Adam: “From every tree which is in the garden thou shalt eat food; but from the tree of knowledge of good and evil, from this ye shall not eat: for in the day that ye shall eat of it, ye shall die by death;” he then, lying against the Lord, tempted man, as the Scripture says that the serpent said to the woman: “Has God indeed said this, Ye shall not eat from every tree of the garden?”5 And when she had exposed the falsehood, and simply related the command, as He had said, “From every tree of the garden we shall eat; but of the fruit of the tree which is in the midst of the garden, God hath said, Ye shall not eat of it, neither shall ye touch it, lest ye die:” when he had [thus] learned from the woman the command of God, having brought his cunning into play, he finally deceived her by a falsehood, saying, “Ye shall not die by death; for God knew that in the day ye shall eat of it your eyes shall be opened, and ye shall be as gods, knowing good and evil.”7 In the first place, then, in the garden of God he disputed about God, as if God was not there, for he was ignorant of the greatness of God; and then, in the next place, after he had learned from the woman that God had said that they should die if they tasted the aforesaid tree, opening his mouth, he uttered the third falsehood,” Ye shall not die by death.” But that God was true, and the serpent a liar, was proved by the result, death having passed upon them who had eaten. For along with the fruit they did also fall under the power of death, because they did eat in disobedience; and
disobedience to God entails death. Wherefore, as they became forfeit to death, from that [moment] they were handed over to it.
2. Thus, then, in the day that they did eat, in the same did they die, and became death’s debtors, since it was one day of the creation. For it is said, “There was made in the evening, and there was made in the morning, one day.” Now in this same day that they did eat, in that also did they die. But according to the cycle and progress of the days, after which one is termed first, another second, and another third, if anybody seeks diligently to learn upon what day out of the seven it was that Adam died, he will find it by examining the dispensation of the Lord. For by summing up in Himself the whole human race from the beginning to the end, He has also summed up its death. From this it is clear that the Lord suffered death, in obedience to His Father, upon that day on which Adam died while he disobeyed God. Now he died on the same day in which he did eat. For God said, “In that day on which ye shall eat of it, ye shall die by death.” The Lord, therefore, recapitulating in Himself this day, underwent His sufferings upon the day preceding the Sabbath, that is, the sixth day of the creation, on which day man was created; thus granting him a second creation by means of His passion, which is that [creation] out of death. And there are some, again, who relegate the death of Adam to the thousandth year; for since “a day of the Lord is as a thousand years,” he did not overstep the thousand years, but died within them, thus bearing out the sentence of his sin. Whether, therefore, with respect to disobedience, which is death; whether [we consider] that, on account of that, they were delivered over to death, and made debtors to it; whether with respect to [the fact that on] one and the same day on which they ate they also died (for it is one day of the creation); whether [we regard this point], that, with respect to this cycle of days, they died on the day in which they did also eat, that is, the day of the preparation, which is termed “the pure supper,” that is, the sixth day of the feast, which the Lord also exhibited when He suffered on that day; or whether [we reflect] that he (Adam) did not overstep the thousand years, but died within their limit,—it follows that, in regard to all these significations, God is indeed true. For they died who tasted of the tree; and the serpent is proved a liar and a murderer, as the Lord said of him: “For he is a murderer from the beginning, and the truth is not in him.”
Irenaeus of Lyons, “Irenæus against Heresies,” in The Apostolic Fathers with Justin Martyr and Irenaeus, ed. Alexander Roberts, James Donaldson, and A. Cleveland Coxe, vol. 1, The Ante-Nicene Fathers (Buffalo, NY: Christian Literature Company, 1885), 551–552.
This was both the Early Christian and Ancient Jewish understanding. That this is the correct understanding can be see in the actually event in Scripture.
17 And unto Adam he said, Because thou hast hearkened unto the voice of thy wife,
and hast eaten of the tree, of which I commanded thee, saying,
Thou shalt not eat of it: cursed is the ground for thy sake; in sorrow shalt thou eat of it all the days of thy life; 18 Thorns also and thistles shall it bring forth to thee; and thou shalt eat the herb of the field; 19 In the sweat of thy face shalt thou eat bread,
till thou return unto the ground; for out of it wast thou taken: for dust thou art, and unto dust shalt thou return.
The Holy Bible: King James Version, Electronic Edition of the 1900 Authorized Version. (Bellingham, WA: Logos Research Systems, Inc., 2009), Ge 3:16–19.
We see that the penalty for Adam's disobedience (sin) was that he would return to the dust. That is his physical death. Death is the cessation of life.
9 When He opened the fifth seal, I saw under the altar the souls of those who had been slain for the word of God and for the testimony which they held.
10 And they cried with a loud voice, saying, "How long, O Lord, holy and true, until You judge and avenge our blood on those who dwell on the earth?"
11 Then a white robe was given to each of them; and it was said to them that they should rest a little while longer, until both the number of their fellow servants and their brethren, who would be killed as they were, was completed. (Rev. 6:9-11 NKJ)
Since the first four seals were allegories, it follows that this one is too. That we know that dead people can't speak, we should be able to see that this is figurative language. That we see this figurative language used of the martyrs elsewhere also shows that this is figurative language.
10 And he said, What hast thou done?
the voice of thy brother’s blood crieth unto me from the ground
The Holy Bible: King James Version, Electronic Edition of the 1900 Authorized Version. (Bellingham, WA: Logos Research Systems, Inc., 2009), Ge 4:10.
Can blood also speak?
In Rev 6 we see the martyrs are told to wait for their brethren. Then chapter 20 we see these brethren. They are reigning with Christ. So, the souls in Reve 20 are resurrected Saints, obviously in the flesh. This fits the definition of the word soul. Why then would we understand the souls in Rev 6 as disembodied ghosts?