i-adjective
Describes a blade, edge, or point that has lost its sharpness.
この包丁は鈍いから、研がないと切れない。
This kitchen knife is dull, so it won't cut unless I sharpen it.
i-adjective
Refers to a person who is slow to understand or lacking in mental sharpness. Can be insulting.
彼は鈍いから、冗談が通じないことが多い。
He's thickheaded, so jokes often don't get through to him.
i-adjective
Used for sounds, colors, light, or sensations that lack brightness, clarity, or intensity.
鈍い音が壁の向こうから聞こえた。
A dull sound came from the other side of the wall.
この部屋は照明が鈍くて、本が読みにくい。
The lighting in this room is dim, making it hard to read.
i-adjective
Describes movement, reaction, or activity that is lacking speed or energy.
朝は体が鈍くて、なかなか動けない。
My body feels sluggish in the morning and I can't get moving easily.
i-adjective
insensitive; unperceptive; dull
Refers to a person's senses, intuition, or emotional awareness being slow or lacking sharpness.
彼は人の気持ちに鈍いところがある。
He can be a bit insensitive to other people's feelings.