Obversion

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The act of turning toward or downward. countable, uncountable
  2. 2
    An immediate inference that denies the opposite of something previously affirmed. countable, uncountable

    "All men are mortal, so, by obversion, no men are immortal."

Example

More examples

"All men are mortal, so, by obversion, no men are immortal."

Etymology

Latin obversio (“a turning towards”).

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