adjective, cooler, coolest.
moderately cold; neither warm nor cold:
a rather cool evening.
feeling comfortably or moderately cold:
I’m perfectly cool, but open the window if you feel hot.
imparting a sensation of moderate coldness or comfortable freedom from heat:
a cool breeze.
permitting such a sensation:
a cool dress.
not excited; calm; composed; under control:
to remain cool in the face of disaster.
not hasty; deliberate:
a cool and calculated action.
lacking in interest or enthusiasm:
a cool reply to an invitation.
lacking in warmth or cordiality:
a cool reception.
calmly audacious or impudent:
a cool lie.
aloof or unresponsive; indifferent:
He was cool to her passionate advances.
unaffected by emotions; disinterested; dispassionate:
She made a cool appraisal of all the issues in the dispute.
Informal. (of a number or sum) without exaggeration or qualification:
a cool million dollars.
(of colors) with green, blue, or violet predominating.
something that is cool; a cool part, place, time, etc.:
in the cool of the evening.
calmness; composure; poise:
an executive noted for maintaining her cool under pressure.
verb (used without object)
to become cool (sometimes followed by down or off):
The soup cooled in five minutes. We cooled off in the mountain stream.
to become less ardent, cordial, etc.; become moderate.
verb (used with object)
to make cool; impart a sensation of coolness to.
to lessen the ardor or intensity of; allay; calm; moderate:
Disappointment cooled his early zealousness.
cool down, to bring the body back to its normal physiological level after fast, vigorous exercise or activity by gradually slowing the pace of activity or by doing gentle exercises or stretches.
cool off, Informal. to become calmer or more reasonable:
Wait until he cools off before you talk to him again.
cool out, Slang. to calm or settle down; relax:
cooling out at the beach.
blow one’s cool. 2 (def 44).
cool it, Slang. calm down; take it easy.
cool one’s heels. 1 (def 26).
moderately cold: a cool day
comfortably free of heat: a cool room
producing a pleasant feeling of coldness: a cool shirt
able to conceal emotion; calm: a cool head
lacking in enthusiasm, affection, cordiality, etc: a cool welcome
calmly audacious or impudent
(informal) (esp of numbers, sums of money, etc) without exaggeration; actual: a cool ten thousand
(of a colour) having violet, blue, or green predominating; cold
(of jazz) characteristic of the late 1940s and early 1950s, economical and rhythmically relaxed
(informal) sophisticated or elegant, esp in an unruffled way
(informal) excellent; marvellous
(not standard) in a cool manner; coolly
coolness: the cool of the evening
(slang) calmness; composure (esp in the phrases keep or lose one’s cool)
(slang) unruffled elegance or sophistication
usually foll by down or off. to make or become cooler
usually foll by down or off. to lessen the intensity of (anger or excitement) or (of anger or excitement) to become less intense; calm down
(usually imperative) (slang) cool it, to calm down; take it easy
cool one’s heels, to wait or be kept waiting
Old English col “not warm” (but usually not as severe as cold), also, of persons, “unperturbed, undemonstrative,” from Proto-Germanic *koluz (cf. Middle Dutch coel, Dutch koel, Old High German kuoli, German kühl “cool,” Old Norse kala “be cold”), from PIE root *gel- “cold, to freeze” (see cold (adj.)).
Applied since 1728 to large sums of money to give emphasis to amount. Meaning “calmly audacious” is from 1825. Slang use for “fashionable” is 1933, originally Black English; modern use as a general term of approval is from late 1940s, probably from bop talk and originally in reference to a style of jazz; said to have been popularized in jazz circles by tenor saxophonist Lester Young. Related: Coolly.
c.1400, “coldness, coolness,” from cool (adj.). Meaning “one’s self-control, composure” (the thing you either keep or lose) is from 1966.
Old English colian, “to lose warmth,” also figuratively, “to lose ardor,” from the root of cool (adj.). Meaning “to cause to lose warmth” is from late 14c. Related: Cooled; cooling.
blow one’s cool, lose one’s cool, play it cool, zero cool
[koo-lee] /ˈku li/ noun 1. Charles Horton [hawr-tn] /ˈhɔr tn/ (Show IPA), 1864–1929, U.S. author and pioneer in the field of sociology. Cooley Coo·ley (kōō’lē), Denton Arthur. Born 1920. American surgeon and educator who in 1969 performed the first artificial heart transplant on a human.
- Coolgardie safe
/kuːlˈɡɑːdɪ/ noun 1. a cupboard with wetted hessian walls for keeping food cool: used esp in Australia Sometimes shortened to Coolgardie
- Cool guy
noun phrase A conventional, tedious, or pretentious person who thinks he is up-to-date, aware, interesting, etc (1990s+ Teenagers)
- Cool hand
modifier : these four cool-hand lunatics noun phrase A person not easily disconcerted •Sir Thomas Overbury (d. 1613) wrote that a cool hand is ”one who accounts bashfulness the wickedest thing in the world, and therefore studies impudence” (1600s+)