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Unfathomable vs Unthinkable - What's the difference?

unfathomable | unthinkable |

As adjectives the difference between unfathomable and unthinkable

is that unfathomable is impossible to fathom or understand; incomprehensible while unthinkable is incapable of being believed; incredible.

unfathomable

English

Adjective

(en adjective)
  • Impossible to fathom or understand; incomprehensible.
    • The sheer numbers they attacked with were unfathomable .
  • * {{quote-news, year=2013, date=April 9, author=Andrei Lankov, title=Stay Cool. Call North Korea’s Bluff., work=New York Times citation
    • , passage=Suggestions that those leaders are irrational and their decisions unfathomable are remarkably shallow. North Korea is not a theocracy led by zealots who preach the rewards of the afterlife.}}
  • Difficult to penetrate.

    • Antonyms

    * (l)

    See also

    * (l) * (l) * (l)

    unthinkable

    English

    Adjective

    (en adjective)
  • Incapable of being believed; incredible.
  • Inconceivable or unimaginable; extremely improbable in a way that goes against common sense.
    • Nothing is unthinkable , nothing impossible to the balanced person, provided it comes out of the needs of life and is dedicated to life's further development -
  • * {{quote-news
    • , year=2011 , date=October 23 , author=Tom Fordyce , title=2011 Rugby World Cup final: New Zealand 8-7 France , work=BBC Sport citation , page= , passage=With 16 minutes left on the clock and the tension climbing through the roof, Trinh-Duc tried his luck with a penalty from just inside halfway only to push it wide, but the unthinkable now seemed a real possibility.}}

    References

    * (EtymOnLine)