Strong's #3474: moros (pronounced mo-ros')

probably from the base of 3466; dull or stupid (as if shut up), i.e. heedless, (morally) blockhead, (apparently) absurd:--fool(-ish, X -ishness).

Thayer's Greek Lexicon:

́

mōros

1) foolish

2) impious, godless

Part of Speech: adjective

Relation: probably from the base of G3466

Citing in TDNT: 4:832, 620

Usage:

This word is used 13 times:

 

Matthew 5:22: "council: but whosoever shall say, Thou fool, shall be in danger"
Matthew 7:26: "them not, shall be likened unto a foolish man, which built his"
Matthew 23:17: " Ye fools and blind: for whether is greater, the"
Matthew 23:19: " Ye fools and blind: for whether is greater, the gift,"
Matthew 25:2: "wise, and five were foolish."
Matthew 25:3: "They that were foolish took their lamps, and took no oil"
Matthew 25:8: "And the foolish said unto the wise, Give us"
1 Corinthians 1:25: "Because the foolishness of God is wiser than men; and"
1 Corinthians 1:27: "God hath chosen the foolish things of the world to confound"
1 Corinthians 3:18: "this world, let him become a fool, that he may be wise."
1 Corinthians 4:10: "We are fools for Christ's sake, but ye are wise in"
2 Timothy 2:23: "But foolish and unlearned questions avoid, knowing that"
Titus 3:9: "But avoid foolish questions, and genealogies, and contentions,"