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Dumbfounded vs Unfounded - What's the difference?

dumbfounded | unfounded |

As adjectives the difference between dumbfounded and unfounded

is that dumbfounded is shocked and speechless while unfounded is having no strong foundation; not based on solid reasons or facts.

As a verb dumbfounded

is (dumbfound).

dumbfounded

English

Alternative forms

* dumfounded

Adjective

(en adjective)
  • shocked and speechless.

    • Synonyms

    * amazed, astonished, astounded, confounded, flabbergasted, perplexed, shocked, speechless, stunned, surprised

    Verb

    (head)
  • (dumbfound)

    • unfounded

    English

    Adjective

    (-)
  • Having no strong foundation; not based on solid reasons or facts.
  • Not having been founded or instituted.
  • * 1980 , Helen Louise Gardner, ?John Carey, English Renaissance studies (page 268)
    • Even the great world as yet undiscovered, the cities as yet unfounded , and the history as yet unwritten, are lost: fallen from the beginning.

    Synonyms

    * (not based on solid reasons or facts) baseless, groundless, ungrounded