Lexical Definition

‎ἀδύνατος‎ adýnatos (ad-oo'-nat-os) unable G:A
from ‎Α‎ (as a negative particle) and ‎δυνατός‎

could not do, impossible, impotent, not possible, weak.

Usage: 12 forms in 25 verses
Form Translated As     In Verse(s)
ἀδύνατόν impossible Matt.19.26
ἀδύνατοσ crippled Acts.14.8
ἀδύνατον impossible Mark.10.27Heb.6.4Heb.6.18Heb.10.4Heb.11.6
powerless Rom.8.3
ἀδύνατα impossible Luke.18.27
ἀδυνάτων weak Rom.15.1
αδύνατοσ and may powerless LXX.Job.5.15
powerless LXX.Joel.3.10
αδύνατον a disabled LXX.Job.31.34
disabled LXX.Job.36.15
αδύνατοι But disabled LXX.Job.31.16
and disabled LXX.Job.24.6
and the disabled LXX.Job.31.20
αδύνατά impossible LXX.Prov.30.18
αδυνάτων disabled LXX.Job.34.20LXX.Job.36.19
of disabled LXX.Job.20.19
of the disabled LXX.Job.29.16
αδυνάτω disabled LXX.Job.30.25
αδυνάτουσ disabled LXX.Job.24.4LXX.Job.24.22

Abbott-Smith

ἀ-δύνατος, -ον, [in LXX for אֶבְיוֹן, דַּל, etc.;]

1. of persons, unable, powerless: Ac 14:8; fig. Ro 15:1 (MM, VGT, s.v.).
2. Of things, impossible: Mt 19:26, Mk 10:27, Lk 18:27, Ro 8:3, He 6:4, 18 10:4 11:6.†

Abbott-Smith References

Book Refs
Matthew 19:26
Mark 10:27
Luke 18:27
Acts 14:8
Romans 8:3 · 15:1
Hebrews 6:4 · 6:18 · 10:4 · 11:6

Liddell-Scott-Jones

ἀδύνατος-ος, ον,

__I of persons, unable to do a thing, with infinitive, [Refs 5th c.BC+]; . ὥστε.. [Refs 5th c.BC+]: superlative -ώτατος, λέγειν[Refs 5th c.BC+]
__I.2 absolutely, without strength, powerless, weakly, [Refs 5th c.BC+]; οἱ . men disabled for service, whether as invalids or paupers, [Refs 5th c.BC+]; . χρήμασι poor, [Refs 5th c.BC+]; εἴς τι [Refs 5th c.BC+]; οἱ -ώτατοι persons of no importance, [Refs 1st c.BC+]; of ships, disabled, [Refs 5th c.BC+]; τὸ . want of strength, [Refs 5th c.BC+]; τὰ . disabilities, [Refs 4th c.BC+]
__II of things, impossible, [Refs 5th c.BC+]; ἐλπίδες unrealizable, [Refs 4th c.BC+]reductio ad impossibile, APr. [Refs] —ἀδύνατόν [ἐστι] with infinitive, [Refs 5th c.BC+]; ἀδύνατά [ἐστι] [Refs 5th c.BC+]; . ὑμῖν ὥστε.. [Refs 5th c.BC+]: superlative, δὴ πάντων -ώτατον[Refs]
__III adverb -τως without power or skill, feebly, ἀμύνεσθαι[Refs 5th c.BC+] —. ἔχειν to be unwell, [Refs 5th c.BC+]; to be unable, with infinitive, [Refs 4th c.BC+]; . ἔχει it is impossible, [Refs 4th c.BC+]; . λέγεται it is an impossible story, [Refs 5th c.BC+]