English word
Fantastic
Definitions
adjective
- based on fantasy (see fantasy entry 1 sense 2) : not real
- conceived or seemingly conceived by unrestrained fancy
- so extreme as to challenge belief : unbelievable
- exceedingly large or greatbroadly
- marked by extravagant fantasy or extreme individuality : eccentric
- excellent, superlative
Synonyms for fantastic
Closest evidence-backed alternatives.
- bizarre
- absurd
- foolish
- unreal
- insane
- imaginary
- tremendous
- far-fetched
- sensational
- nonsensical
- visionary
- make-believe
- illusory
- curious
- illusive
- suppositious
- incredulous
- barmy
- unconvincing
- misleading
Synonyms by context
Difficult to believe or unlikely to happen
adjective
- wild
- extravagant
- fanciful
- irrational
- eccentric
- implausible
- incredible
Having a strange, curious or mysterious nature
adjective
- strange
- exotic
- peculiar
- weird
- outlandish
- freakish
- grotesque
- quaint
Existing only in the realms of one's imagination
adjective
- mythical
- fictional
- fictitious
- mythic
- surreal
- chimeric
- chimerical
- fabulous
Expression of gladness and content
interjection
An elliptical exclamation of satisfaction or commendation
interjection
- good
- brilliant
- glorious
- magnificent
- marvelous
- marvellous
- out of this world
(informal, sarcastic) Used ironically to express disapproval
- some
- amazing
- super
- excellent
- extraordinary
Antonyms for fantastic
Opposite of difficult to believe or unlikely to happen
- believable
- conceivable
- cogitable
- convincing
- realistic
- creditable
- sound
- credible
- imaginable
- possible
Opposite of having a strange, curious or mysterious nature
Opposite of existing only in the realms of one's imagination
- real
- actual
- existing
- physical
- true
- unimaginary
- concrete
- corporeal
- existent
Phrases
- a bit much
- beyond belief
- beyond one
- beyond one's wildest dreams
- beyond possibility
- beyond reason
- beyond the bounds of possibility
- beyond the realm of reason
- beyond you
- blown up
- cock and bull
- contrary to reason
- difficult to believe
- extremely difficult to believe
- extremely doubtful
- extremely implausible
- extremely unlikely
- far out
- fat chance
- for the birds