- The definition of cool is slightly chilly, but not cold, or a slang term for popular or in style.
- An example of cool is typical New England fall weather.
- An example of cool is the latest fashionable pair of jeans.
cool definition by Webster's New World
- moderately cold; neither warm nor very cold
- tending to reduce discomfort in warm or hot weather: cool clothes
- not excited; calm; composed: cool in an emergency
- ☆ marked by control of the emotions; restrained: cool jazz
- Slang emotionally uninvolved; uncommitted; dispassionate
- showing dislike or indifference; not cordial: a cool manner
- calmly impudent or bold
- not suggesting warmth: said of colors in the blue-green end of the spectrum
- Informal without exaggeration: he won a cool thousand dollars
- ☆ Slang very good, pleasing, etc.; excellent
Origin: Middle English and amp; Old English col ; from Indo-European base an unverified form gel-, cold, to freeze from source chill, cold, Classical Latin gelu
- a cool place, time, thing, part, etc.: the cool of the evening
- ☆ Slang cool, dispassionate attitude or manner
Origin: ME colien < OE colian, to cool
cool definition by American Heritage Dictionary
adjective cool·er, cool·est
- Neither warm nor very cold; moderately cold: fresh, cool water; a cool autumn evening.
- Giving or suggesting relief from heat: a cool breeze; a cool blouse.
- Marked by calm self-control: a cool negotiator.
- Marked by indifference, disdain, or dislike; unfriendly or unresponsive: a cool greeting; was cool to the idea of higher taxes.
- Of, relating to, or characteristic of colors, such as blue and green, that produce the impression of coolness.
- Slang a. Excellent; first-rate: has a cool sports car; had a cool time at the party.b. Acceptable; satisfactory: It's cool if you don't want to talk about it.
- Slang Entire; full: worth a cool million.
- To make less warm.
- To make less ardent, intense, or zealous: problems that soon cooled my enthusiasm for the project.
- Physics To reduce the molecular or kinetic energy of (an object).
- To become less warm: took a dip to cool off.
- To become calmer: needed time for tempers to cool.
- A cool place, part, or time: the cool of early morning.
- The state or quality of being cool.
- Composure; poise: “Our release marked a victory. The nation had kept its cool” (Moorhead Kennedy).
Origin: Middle English cole, from Old English cōl; see gel- in Indo-European roots.
- coolˈish adjective
- coolˈly adverb
- coolˈness noun
cool - Computer Definition
A family of tools from Sterling Software for modeling and developing enterprise applications for every major hardware platform. Later owned and marketed by Computer Associates (CA), which purchased Sterling Software in 2000, the product line continues to provide business and data modeling for the enterprise. Look for the COOL products under the CA name of "Advantage Developer Series."
cool - Phrases/Idioms
- to lower the body temperature, pulse, etc. after vigorous exercise
- to become less heated, passionate, agitated, angry, etc.
- to calm down
- to lose enthusiasm, interest, etc.
cool outâ Slang
play it coolâ
- To calm down; relax.
- To stop doing something.
cool (one's) heels