Describes a person or their behavior as lacking refinement, often in a physical or surface-level way; can refer to rough manners, sloppy appearance, or careless actions.
Focuses on interpersonal insensitivity: thoughtless remarks, lack of consideration, or boorish behavior that offends or annoys others.
He opened the box with rough, clumsy hands.
He's a person with a coarse way of speaking.
I said something tactless and made her angry.
That person is rude and doesn't consider others' feelings.
がさつ describes rough, coarse manners, the opposite of the refined gentleness expressed by 淑やか.
Hiragana spelling is standard; no kanji form exists.
Katakana spelling used for emphasis or in casual writing.
The origin is uncertain. It may be a sound-symbolic word (mimetic) suggesting roughness or coarseness, but the exact derivation is unclear.