たまらん
Meanings
1
usually written using kana alone
Expresses that a negative situation is so bad one cannot stand it. Often used in exclamations.
See also: たまらない
This heat is unbearable.
2
irresistible; tremendous; out of this world
usually written using kana alone
Expresses that something is so good or desirable that one cannot resist it. Often used with 〜てたまらん.
See also: たまらない
This cake is so delicious I can't resist it.
3
cannot help doing; anxious to do
usually written using kana alone
Follows the 〜て/〜で form of a verb and expresses an uncontrollable urge or feeling. Equivalent to 〜てたまらない in casual speech.
See also: たまらない
I can't help worrying about him.