和英辞書

1ミリ

noun

(informal, chiefly in the negative) the slightest amount (in reference to one's knowledge, thought, etc.) / Used other than figuratively or idiomatically: see 一, ミリ.

このペンの先は1ミリしかありません。

The tip of this pen is only 1 millimeter.

意味（1）

(informal, chiefly in the negative) the slightest amount (in reference to one's knowledge, thought, etc.)

1(いち)ミリも思(おも)いつかない

ichi-miri mo omoitsukanainever would have thought of even the slightest amount of it

意味（2）

Used other than figuratively or idiomatically: see 一, ミリ.