kusutto
A small, quiet laugh that escapes despite trying to hold it in. A gentle, brief amusement that's charming in its restraint.
💡Used when something is mildly funny and you let out a small laugh, or when you laugh quietly to yourself.
彼の真面目な顔でのボケに、思わずくすっと笑ってしまった。
I couldn't help but let out a small chuckle at his joke delivered with such a straight face.
The audience ___ laughed at the subtle humor in the scene.
観客はそのさりげないユーモアに___と笑った。