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out of the blue

see definition of out of the blue
  • advunpredicted
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Synonyms for out of the blue

adv unpredicted
  • not predicted
  • surprising
  • unanticipated
  • unexpected
  • unforeseen
  • unplanned
  • unprepared for

More words related to out of the blue

sudden

adjective. unexpected; happening quickly
  • abrupt
  • accelerated
  • acute
  • expeditious
  • fast
  • flash
  • fleet
  • hasty
  • headlong
  • hurried
  • immediate
  • impetuous
  • impromptu
  • impulsive
  • out of the blue
  • precipitant
  • precipitate
  • precipitous
  • quick
  • quickened
  • rapid
  • rash
  • rushing
  • spasmodic
  • speeded
  • subito
  • swift
  • unforeseen
  • unusual

unexpectedly

adverb. in an unexpected way
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.