What it means
少しも〇〇ない means “not even a little” or “not one bit.” It emphasizes that the degree or amount of something is zero, and it normally appears with a negative verb, adjective, or adjectival predicate. The expression is stronger and more emphatic than a simple negative, and it can describe feelings, actions, qualities, or conditions that are completely absent.
Usage note
少しも must be used with a negative predicate. In familiar speech, verbs normally use ない, while polite speech uses the corresponding negative ません form; adjectives and adjectival predicates also need their appropriate negative endings.
How to use it
この通りは少しも静かではありません。
This street is not quiet at all.
この部屋は少しも寒くありません。
This room is not cold at all.
彼は少しも驚きません。
He is not surprised in the least.
この通りは少しも静かではない。
This street is not quiet at all.
この部屋は少しも寒くない。
This room is not cold at all.
彼は少しも驚かない。
He is not surprised in the least.