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2 days ago · 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:

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).

The meaning of cool. Definition of cool. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.

May 24, 2026 · Definition Cool is commonly defined as “moderately cold” or as “showing composure and self-control” (or, in informal use, “fashionably attractive or impressive”). Because it can describe both …

A moderate or refreshing state of cold; moderate temperature of the air between hot and cold; coolness. In the cool of the morning.

Cool can be defined as an adjective to describe something or someone that is fashionable, stylish, or trendy. It conveys a sense of attractiveness or allure that is often associated with being calm, …

Learn what Cool means, how people use it in real conversations, and where it comes from. Clear explanations, examples, and synonyms in one place.

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