Contrapositive

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The inverse of the converse of a given logical implication.

Synonyms

All synonyms
adverseantagonisticantiantipatheticantipodalantithetical

Example

More examples

""He who thinks is. The contrapositive thereof is: he who is not does not think. But does the converse of this hold as well: that he who does not think is not?" "That rock over there does not think, and yet it is.""

Etymology

From contra- + positive.

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