What it means
たくない expresses that someone does not want to do an action. It attaches to the masu-stem of a verb and is the negative form of たい, meaning “want to do.” It commonly describes the speaker’s wishes, but it can also describe another person’s wishes when the context makes that clear.
Usage note
たくない is a familiar or plain form. Its polite counterpart is たくないです. Do not attach it directly to a dictionary-form verb; use the masu-stem, such as 見たくない from 見ます.
How to use it
Verb (ます-stem)たくないです
私は映画を見たくないです。
I do not want to watch a movie.
Verb (ます-stem)たくない
私は映画を見たくない。
I do not want to watch a movie.
Example sentences
今日は疲れているので、外で食べたくないです。
Because I am tired today, I do not want to eat out.
明日は朝早く起きたくない。
I don't want to get up early tomorrow.
その映画は長いので、最後まで見たくない。
Because that movie is long, I do not want to watch it until the end.
私は雨の日