(not) at all; (not) in the least
Expresses complete negation: 'not at all' or 'not in the least'.
ちっとも~ない is a strong negation that emphasizes that something does not happen even a little. It is often used in spoken Japanese to express surprise or disappointment that something expected did not occur. The pattern is straightforward: ちっとも comes before the negative predicate. For verbs, use the plain negative form (e.g., 食べない). For い-adjectives, drop the final い and add くない (e.g., 面白くない). For nouns and な-adjectives, use じゃない (e.g., 便利じゃない). Note that ちっとも is somewhat casual and is more common in conversation than in formal writing. It is similar to 全然 but slightly stronger and more emotive.