Strong's #512: anopheles (pronounced an-o-fel'-ace)

from 1 (as a negative particle) and the base of 5624; useless or (neuter) inutility:--unprofitable(-ness).

Thayer's Greek Lexicon:

̓́

anōpheles

1) unprofitable, useless

Part of Speech: adjective

Relation: from G1 (as a negative particle) and the base of G5624

Usage:

This word is used 2 times:

 

Titus 3:9: "about the law; for they are unprofitable and vain."
Hebrews 7:18: "the weakness and unprofitableness thereof."