秋毫

しゅうごう【秋毫】

the least bit; a minute amount.

●秋毫も 《not》 in the least; 《not》 at all [⇒すこしも]

・彼には主君の命に背く意志は秋毫もなかった. He didn't have the least inclination to disobey his lord's orders.