Hi eggi,
You are going to have a really hard time finding any scholars that will speak of aidios meaning anything but eternal. But here are a few more places where Ray says something about it.
http://forums.bible-truths.com/index.php?topic=2657.0 ---------
"Aidios" assuredly DOES NOT mean "eternal." It means imperceptible or invisable. It has two elements "A" = not, and "idios" = see or perceive. Hence "not see or not perceive." What can BE seen in creation attests to what CANNOT BE SEEN in God's achievements. The bonds of the angels are not visible and literal physical chains, but "imperceptible" chains. It is very similar to the word "h - ades," which is also un perceive, hence unseen or imperceptible.
http://forums.bible-truths.com/index.php?topic=733.0 ------------
The word AIDIOS appears only twice, in Rom 1:20, Jude 6 and ALL lexicons (Greek Dictionaries) call it a synonym for AIONIOS.
COMMENT: I am not sure that "ALL lecions" say aidios is synonymous with aionios. "aidion = UN-PERCEIVED, IMPERCEPTIBLE: Rom. 1:20 & Jude 6" (Concordant Greek-English Keyword Concordance, page 154). Read Rom. 1:20: "For the INVISISLBE things of Him from the creation of the world are clearly SEEN [invisible things can be seen? Yes], being understoodby the things that are MADE, EVEN HIS IMPERCEPTIBLE ['invisible'--SAME THOUGHT] and Godhead [Divinity"..." Actually a little elementary logic coupled with the context will clearly show any rational mind that the chains or bonds spoken of in this verse cannot possibly be "eternal" as the context clearly shows that these chains or bons are only, "...UNTO the judgment of the great day [which 'great day' is a designated "aionion" judgment of Jesus Christ (Acts 17:39--a period of lesser and greater chastisement, but a day nonetheless of "ASASURANCE" for all man kind because Jesus has paid the penalty for all sin).
http://forums.bible-truths.com/index.php?topic=11016.0 --------
The Greek word translated "eternal" in Rom. 1:20 and "everlasting" in Jude 6, is aidios, and is very similar
to the word "hades" translated "hell" in many English Bibles. Hades is a compount of ha and des. Ha means not or no--it is a negative. And des means to see or perceive.
When put together it means "unseen" or "imperceptible." Same is true of the word aidios. It is a compount of "a or ha" and "idios." Once again, "a or ha" is a negative meaning no or not, and idios likewise means to see or perceive. When put together the word means to not be able to see or imperceptible. This is further verified by its usage in Rom.
1:20. Notice that verse 20 starts off with, "for the INISIBLE things of Him [that would be things that are NOT made, NOT visible] from the creation of the world are clearly SEEN, being understood by the THINGS THAT ARE MADE [that would be things that ARE visible], even His IMPERCEPTIBLE power, and Divinity; so that they are without excuse."
There is little sense in telling us that God is eternal. If He weren't eternal, He wouldn't be God. No, Paul is telling us that we can understand some of God's great power even though it is invisible by itself. And we can do this by looking at the things God made, that ARE VISIBLE. The visible universe points to God's INvisible (imperceptible) POWER and DIVINITY. Hope this helps your understanding. There is no word in Scripture which means by definition: "eternal," or "endless time."
http://forums.bible-truths.com/index.php?topic=6581.0 -----------
The word translated "eternal" in Rom. 1:20 and Jude 6 is "aidion." The "a" is a prefix meaning "un" or "no" or "not." It is a negative just as in the word "hades" which Dr. Strong correctly informs us is made up of "G1 (as a negative particle) and G1492; properly unseen" UN-seen, or NOT-seen--IMperceptible.
Well, aidion is very close to being the same word and means "IMperceptible, and this is precisely what the context of these two Scriptural usages prove.
Rom 1:19 Because that which may be known [something perceivable] of God is manifest [made perceivable] in them; for God hath showed [made perceivable] it unto them.
Rom 1:20 For the invisible [IMperceivable] things of him from the creation of the world are clearly seen, being understood by the things that are made [what is NOT perceivable, NOT seen, CAN be seen by things that ARE SEEN, namely "the THINGS that are made], even His eternal power [yes, "even His UNseen, NOT seen, IMperceptable power" can BE SEEN by things that CAN BE SEEN, namely "the things that are made] and Godhead; so that they are without excuse"
There is the contextual proof of the word, plain and simple. Now Jude:
Jud 1:6 And the angels which kept not their first estate, but left their own habitation, he hath reserved in everlasting [Gk: 'aidion'] chains under darkness unto the judgment of the great day.
Once more, let's look at the context: Notice that these angels are "reserved." Here is the definition of "reserve"--"1. To keep back, as for FUTURE USE or for a special purpose" (American Heritage College Dictionary). How can some that is "everlasting" as the King James suggests, be "kept back for FUTURE USE?" That is nonsense! That is terrible translating. Other translations use the words "to" and "for" in place of the King James "unto the judgment." In other words these restraining chains last only "till" "to" or "for" another day. These chains are not "everlasting," but rather they are "imperceptible." How does one "chain" a spirit being with "visible iron chains made with matter?"
Hope this helps your understanding. I have been answering this same question on aiodion for years now.
God be with you,
Ray