English Thesaurus

Synonyms of 'inconceivable'

(adjective) 
Definition
so unlikely to be true as to be unthinkable
It was inconceivable to me that he could have been my own father.
Synonyms
unimaginable
The children here have lived through unimaginable horrors.
,
impossible
You shouldn't promise what's impossible.
,
incredible
Do not dismiss as incredible the stories your children tell you.
,
staggering (informal)
,
unbelievable
I find it unbelievable that people can accept this sort of behaviour.
,
unthinkable
Monday's unthinkable tragedy
,
out of the question
Is a tax increase still out of the question?
,
incomprehensible
incomprehensible mathematics puzzles
,
unheard-of
It was unheard-of for someone so young to become a Member of Parliament.
,
mind-boggling (informal)
,
beyond belief
,
unknowable
,
not to be thought of
Opposites

Additional synonyms

in the sense of impossible
Definition
not able to be done or to happen
You shouldn't promise what's impossible.
Synonyms
unachievable,
out of the question,
unattainable,
unobtainable,
beyond you,
not to be thought of
in the sense of incomprehensible
incomprehensible mathematics puzzles
Synonyms
above your head,
beyond comprehension,
all Greek to you (informal),
beyond your grasp
in the sense of incredible
Definition
unbelievable
Do not dismiss as incredible the stories your children tell you.
Synonyms

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English Translation of "inconceivable"
English Translation of "inconceivable"
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Video: pronunciation of 'inconceivable'

Source

Thesaurus for inconceivable from the Collins English Thesaurus
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