[ uhn-frend-lee ]
See synonyms for unfriendly on Thesaurus.com
adjective,un·friend·li·er, un·friend·li·est.
  1. not amicable; not friendly or kindly in disposition; unsympathetic; aloof: an unfriendly coldness of manner.

  2. hostile; antagonistic: an unfriendly act of aggression.

  1. unfavorable; inhospitable or inimical, as an environment: an unfriendly climate for new ideas.

  1. in an unfriendly manner.

Origin of unfriendly

before 900; Middle English (adj.); Old English unfreondlīche (adv.). See un-1, friendly

Other words from unfriendly

  • un·friend·li·ness, noun

Words Nearby unfriendly

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use unfriendly in a sentence

British Dictionary definitions for unfriendly


/ (ʌnˈfrɛndlɪ) /

adjective-lier or -liest
  1. not friendly; hostile

  2. unfavourable or disagreeable

  1. rare in an unfriendly manner

Derived forms of unfriendly

  • unfriendliness, 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