cool, composed, collected, unruffled, imperturbable, nonchalant mean free from agitation or excitement. cool may imply calmness, deliberateness, or dispassionateness.

cool adjective (CALM) C1 calm and not worried or frightened; not influenced by strong feeling of any kind:

COOL definition: moderately cold; neither warm nor cold. See examples of cool used in a sentence.

cool (informal) used to show that you admire or approve of something, often because it is fashionable, attractive, or different: I think their new song's really cool.

1. A cool place, part, or time: the cool of early morning. 2. The state or quality of being cool. 3. Composure; poise: "Our release marked a victory. The nation had kept its cool" (Moorhead Kennedy).

If you say that a person or their behavior is cool, you mean that they are calm and unemotional, especially in a difficult situation.

Discover everything about the word "COOL" in English: meanings, translations, synonyms, pronunciations, examples, and grammar insights - all in one comprehensive guide.