G0512
ἀνωφελής
useless
ἀν-ωφελής, -ές (ἀ- neg., ὄφελος), [in LXX: Isa.44:10 (יָעַל בִּלְתִּי) Jer.2:8 (יָעַל לֹא), Pro.28:3, Wis.1:11 * ;] unprofitable: Tit.3:9; neut. as subst., unprofitableness: Heb.7:18.† (AS)
Full Thayer's lexicon entry
ἀνωφελής — anōphelḗs
ἀνωφελής, ἀνωφελές (alpha privative and ὄφελος); from Aeschylus down; unprofitable, useless: Tit 3:9. Neuter as a substantive in Heb 7:18 (διά τό αὐτῆς ἀνωφελές on account of its unprofitableness).
2 occurrences
Titus (1), Hebrews (1)