worth doing; cannot bear doing ~
Expresses that something is worth doing or, in the negative, that one cannot bear doing it.
This pattern is used to judge whether an action or situation is worth enduring or not. The positive form に耐える often appears with nouns or verb-stems like 読書, 見学, or 鑑賞 to mean 'worth doing'. It implies that the effort or discomfort is rewarded by the value of the experience. The negative form に耐えない means 'cannot bear' and is used for situations that are emotionally or physically intolerable, such as 悲しみ or 苦痛. In this case, the subject cannot endure it, and it often has a literary or formal nuance. Note that the negative form is not the simple opposite of the positive—it does not mean 'not worth doing' but rather 'unbearable'.