Inconceivable

//ɪn.kənˈsiː.və.bl̩// adj

adj ·Moderate ·College level

Definitions

Adjective
  1. 1
    Unable to be conceived or imagined; unbelievable.

    "While the world altered dramatically during the course of her reign, the monarchy did too, though rather more imperceptibly: the walkabouts that increasingly characterised royal appearances, the pop concerts at Buckingham Palace, the throwing open of the royal palaces to visitors – even the paying of income tax, and royal podcasts – would have been inconceivable as innovations at the time Elizabeth came to the throne."

Adjective
  1. 1
    totally unlikely wordnet

Synonyms

All synonyms
a bit thicka bit thinabsurdanticbarredbeguiling

Example

More examples

"A few years ago it would have been inconceivable for Japan to send troops overseas."

Etymology

From in- + conceivable.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.