Quick Definition
profitless, unprofitable
Strong's Definition
gainless, i.e. (by implication) pernicious
Derivation: from G1 (Α) (as a negative particle) and the base of G3081 (λυσιτελεῖ);
KJV Usage: unprofitable
Thayer's Greek Lexicon
ἀλυσιτελής, (ές (λυσιτελής, see λυσιτελέω), unprofitable, (Xenophon, vectig. 4, 6); by litotes, hurtful, pernicious: Heb_13:17. (From (Hippocrates) Xenophon down.)
STRONGS NT 255a: ἄλφαἄλφα, τό, indeclinable: Rev_1:8; Rev_21:6; Rev_22:13. See A.
Mounce Concise Greek Dictionary
ἀλυσιτελής alysitelēs 1x
pr. bringing in no revenue or profit; hence, unprofitable, useless; detrimental; ruinous, disastrous, Heb_13:17
Abbott-Smith Greek Lexicon
* ἀ -λυσιτελής , -ές
( cf. λυσιτελέω ), unprofitable : Heb_13:17 .†
Moulton & Milligan — Vocabulary of the Greek NT
ἀλυσιτελής [page 24]
P Tebt I. 68 31 (B.C. 117 6) τῶ [ν ] ἀλυσιτελῶν γενῶν of inferior crops, unprofitable by comparison with wheat.
Liddell-Scott — Intermediate Greek Lexicon
ἀλυσιτελής "unprofitable", Xen. adv. ἀλυσιτελῶς, id=Xen.
STEPBible — Tyndale Abridged Greek Lexicon
ἀ-λυσιτελής, -ές
(cf. λυσιτελέω), unprofitable: Heb.13:17.†
(AS)