Meaning & use

inconceivable

adjective·Academic

Last updated

UK/ˌɪnkənˈsiːvəbl/
US/ˌɪnkənˈsivəbəl/

Meanings

  1. adjectivecomparable

    So unlikely or strange that the mind cannot picture it or accept it as true.

    Grammar: Often used after a verb or with it: it is inconceivable that she would lie.

    Patterns

    • it is inconceivable that something
    • inconceivable to someone

    It is inconceivable that such a small team could build the whole bridge in a week.

    To her, quitting before the finish was inconceivable.

    A world without music is inconceivable to me.

  2. adjectiveafter a verbinformalhumorous

    Used loosely to react to something very surprising, as in the famous film line where it is said about events that are surprising but not truly impossible.

    Grammar: Used as an exclamation or a short comment, often playfully.

    Patterns

    • Inconceivable!

    "Inconceivable!" he joked when the cat ate the whole cake.

    When the train arrived on time, my friend whispered, "Inconceivable."

    The kids loved to shout "Inconceivable!" after the old movie.

Word forms

comparativemore inconceivable
superlativemost inconceivable

Common combinations

almost inconceivable
The size of the universe is almost inconceivable.
simply inconceivable
Leaving without saying goodbye was simply inconceivable.
quite inconceivable
It was quite inconceivable that they would refuse.
inconceivable that
It seems inconceivable that nobody noticed.
inconceivable to me
Such cruelty is inconceivable to me.

Synonyms and how they differ

unthinkable
Unthinkable often suggests something too shocking or awful to consider, while inconceivable simply means impossible to imagine.
unimaginable
Unimaginable is very close but can describe huge or intense things, as in unimaginable pain, which inconceivable does less often.
incredible
Incredible is used for the wonderful or hard to believe in a general way, but inconceivable is stronger and implies not even picturable.
implausible
Implausible means unlikely to be true, which is weaker than inconceivable.

Opposites

Word family

conceive verb
to form an idea in the mind
conceivable adjective
able to be imagined or thought possible
inconceivably adverb
in a way that cannot be imagined
inconceivability noun
the quality of being impossible to imagine

Commonly confused: inconceivable or impossible? inconceivable or inconsiderable?

inconceivable vs impossible

Impossible means it cannot happen, while inconceivable means you cannot even imagine it; something can be impossible yet easily imagined.

inconceivable vs inconsiderable

Inconsiderable means small or unimportant, which is a different meaning entirely.

Practice

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