毛けほど

expression, noun which may take the genitive case particle 'no'

(not) even a little; (not) a tiny bit

Used in negative sentences to emphasize that there is absolutely none of something, not even a hair's breadth. Often with ない or similar negative forms.

• 彼かれの話はなしには毛けほども真しん実じつはない。

  There isn't even a shred of truth in his story.

• その計けい画かくに毛けほどの興きょう味みもない。

  I don't have the slightest interest in that plan.