「少しも」(すこしも) is an adverb that is always used with a negative verb, meaning "not at all," "not even a little," or "not in the slightest." It emphasizes the complete absence or lack of something, often conveying surprise or disappointment. Example: 彼は少しも日本語が話せません。 (He cannot speak Japanese at all.)

否定文とともに使い、全く〜ないことを強調する。