Quick Definition
ἀναγκαστῶς Adv by force, necessarily
Strong's Definition
compulsorily
Derivation: adverb from a derivative of G315 (ἀναγκάζω);
KJV Usage: by constraint
UBS Dictionary of the Greek New Testament
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ἀναγκαστῶς, adv., by force or constraint; opp. to éxovciws, 1 Pet.v. 2. (Plat. Ax. p. 366 a.)
Mounce Concise Greek Dictionary
ἀναγκαστῶς anankastōs 1x
by constraint or compulsion, unwillingly, opposite to ἑκουσίως, 1 Pet. 5:2*
Abbott-Smith Greek Lexicon
* ἀναγκαστῶς adv., necessarily or by constraint: opp. to ἑκουσίως, I Pe 5:2 (rare).†
Moulton & Milligan — Vocabulary of the Greek NT
ἀναγκαστῶς. The derived adj. ἀναγκαστικός occur eight times in Vettius Valens, with the meaning ‘‘fotens,” “‘ efficax”” (Ed.).
Liddell-Scott-Jones — Greek-English Lexicon
ἀναγκαστῶς (anagkastōs) — necessarily. Included with: ἀναγκ-αστός, ή, όν, forced, constrained, [Refs 5th c.BC+]. adverb -τῶς[Refs 5th c.BC+]; opposed to ἑκουσίως, [NT]