How to say "ignorant" in Japanese
Choosing the right word
- 蒙昧もうまいna-adjective, nounCovers 'ignorant' in the sense of unenlightened or uncivilized, often written. A formal, literary choice; as a less common word it is seldom what you want for plain everyday ignorance.
- 無学むがくna-adjective, no-adjective'Ignorant' as uneducated or illiterate — lacking schooling rather than lacking awareness. Fits contexts about someone with little formal education; a less common, somewhat written word.
- 無知蒙昧むちもうまいna-adjective, nounA four-character idiom meaning unenlightened, uneducated and ignorant. Strong and literary; used for sweeping descriptions of ignorance rather than casual remarks about a person.
- 迂愚うぐna-adjective, nounMaps to 'ignorant' but really means stupid or foolish, with a humble, literary flavor. Rare; seldom the word you want for ordinary ignorance about facts.
- 意識が低いいしきがひくいexpression, i-adjective'Ignorant' as having a poor sense of something or being benighted — not very conscious of an issue. A phrase, not a single word, used for low awareness of matters like health or society.
Most of these are rare written words; for everyday 'ignorant' meaning lacking knowledge use 無学 or 「意識が低い」, while 蒙昧, 無知蒙昧 and 迂愚 lean toward unenlightened or stupid.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese equivalents
See also


