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

The comprehensive definition of cool. Includes pronunciation, synonyms, etymology, and usage examples to help you master this word.

Apr 30, 2026 · Dr. Erica Brozovsky of Otherwords explained the etymological origins of the word "cool", noting how it has transcended multiple generations.

Cool can similarly be used to describe composure and an absence of excitement or agitation in a person, especially in times of stress (as expressed in the idiom keep one's cool).

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

Definition of COOL COOL Adjective and Verb Cool is both an adjective and a verb, with meanings that span temperature, attitude, behavior, and emotional restraint. As an adjective, it primarily refers to a …

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

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Cool games make you feel confident, in control and one step ahead. Play now on Poki for and discover titles that look good, play better and feel effortless from the start.