He made her feel insignificant and stupid.

他使她感到卑微愚蠢。

《牛津词典》

If I feel insignificant I will remember my goals.

当我感到渺小时，想想自己的目标。

youdao

And in the face of tremendous force, we feel insignificant by comparison.

面对着如此巨大的力量，自我显得如此微不足道。

youdao

We encourage anyone with information to speak to us no matter how insignificant they feel the detail is.

BBC: Birmingham deaths: Man arrested on suspicion of murder