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Synonyms

rare

1 American  
[rair] / rɛər /

adjective

rarer, rarest
  1. coming or occurring far apart in time; unusual; uncommon: His visits are rare occasions.

    a rare disease;

    His visits are rare occasions.

    Synonyms:
    singular, extraordinary, exceptional
    Antonyms:
    common
  2. thinly distributed over an area; few and widely separated.

    Lighthouses are rare on that part of the coast.

    Synonyms:
    infrequent, infrequent, sparse
    Antonyms:
    frequent
  3. having the component parts not closely compacted together; not dense: lightheaded from the rare mountain air.

    rare gases;

    lightheaded from the rare mountain air.

  4. unusually great.

    a rare display of courage.

  5. unusually excellent; admirable; fine.

    She showed rare tact in inviting them.

    Synonyms:
    inimitable, incomparable, choice
    Antonyms:
    inferior

rare 2 American  
[rair] / rɛər /

adjective

rarer, rarest
  1. (of meat) cooked just slightly.

    He likes his steak rare.


rare 3 American  
[rair] / rɛər /

verb (used without object)

Older Use.
rared, raring
  1. rear.


rare 1 British  
/ rɛə /

adjective

  1. not widely known; not frequently used or experienced; uncommon or unusual

    a rare word

  2. occurring seldom

    a rare appearance

  3. not widely distributed; not generally occurring

    a rare herb

  4. (of a gas, esp the atmosphere at high altitudes) having a low density; thin; rarefied

  5. uncommonly great; extreme

    kind to a rare degree

  6. exhibiting uncommon excellence; superlatively good or fine

    rare skill

  7. highly valued because of its uncommonness

    a rare prize

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

rare 2 British  
/ rɛə /

adjective

  1. (of meat, esp beef) very lightly cooked

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • rareness noun

Etymology

Origin of rare1

First recorded in 1350–1400; Middle English rar(e), rer(e) “light, airy, loose,” from Latin rārus “loose, porous, wide apart, thin, infrequent”

Origin of rare2

First recorded in 1610–20; variant of earlier rear, Middle English rere, hrere, Old English hrēr “(of eggs) lightly boiled”

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Prices could be higher if fuel surcharges increase by the time the ticket gets issued, though this is rare, he said.

From The Wall Street Journal

It is an inherited, rare, progressive and incurable condition.

From BBC

It’s focused on helium-3 to start with, since the gas is rare on the Earth but expected to be found in greater abundance on the moon.

From MarketWatch

The latter is approved to treat two rare kidney diseases.

From Barron's

Apellis has two approved drugs: Empaveli, which is approved to treat two rare kidney diseases, and Syforvre, which is used by patients with geographic atrophy, an advanced form of dry age-related macular degeneration.

From MarketWatch