たまらん

Also written 堪らん

Meanings

1. Expression intolerable; unbearable; unendurable See also: たまらない.
2. irresistible; tremendous; out of this world See also: たまらない.
3. cannot help (doing); cannot but do; anxious to do (after 〜て／〜で form) See also: たまらない.

Jinuma: Japanese Dictionary · Word lists