adjective, un·friend·li·er, un·friend·li·est.

not amicable; not friendly or kindly in disposition; unsympathetic; aloof: an unfriendly coldness of manner.
hostile; antagonistic: an unfriendly act of aggression.
unfavorable; inhospitable or inimical, as an environment: an unfriendly climate for new ideas.


in an unfriendly manner.

Origin of unfriendly

before 900; Middle English (adj.); Old English unfreondlīche (adv.). See un-1, friendly
Related formsun·friend·li·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unfriendly

Contemporary Examples of unfriendly

Historical Examples of unfriendly

  • It was not unfriendly; it was, indeed, consistently respectful, almost reverential.


    Mary Roberts Rinehart

  • Sometimes it is conferred by an unfriendly and inconsiderate hand.

  • Mulready started and fixed him with a troubled and unfriendly stare.

    The Black Bag

    Louis Joseph Vance

  • It must come to a friendly agreement, or an unfriendly crash.

  • Wisdom will never let us stand with any man or men on an unfriendly footing.

    Essays, First Series

    Ralph Waldo Emerson

British Dictionary definitions for unfriendly


adjective -lier or -liest

not friendly; hostile
unfavourable or disagreeable


rare in an unfriendly manner
Derived Formsunfriendliness, noun
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

Word Origin and History for unfriendly

early 15c., "not characteristic of friends," from un- (1) "not" + friendly. Cf. Middle Dutch onvriendelijc, Middle High German unvriuntlich, German unfreundlich. Meaning "hostile, inimical" is recorded from late 15c. Related: Unfriendliness.

Online Etymology Dictionary, © 2010 Douglas Harper