Word.ws English Dictionary

truth-functional

truth-functional adjective: of or relating to a truth function; having a truth value that depends solely on the truth values of its components.

Adjective

truth-functional (not comparable)

  1. Of or relating to a truth function; having a truth value that depends solely on the truth values of its components.
    • Compound sentences are called truth‑functional if their truth-value is a function of the truth-values of their component sentences.1944, Rudolf Carnap, Introduction to Semantics, Harvard University Press, page 48

Antonyms of truth-functional

  • non-truth-functional
  • truth-value gap

Origin of truth-functional

From truth + function + -al.

Words formed from truth-functional

Questions about truth-functional

What does truth-functional mean?
Truth-functional means of or relating to a truth function; having a truth value that depends solely on the truth values of its components.
What part of speech is truth-functional?
Truth-functional is an adjective.

Words near truth-functional in the dictionary

  1. truth trees
  2. truth value
  3. truth values
  4. truth will out
  5. truth window
  6. truth-functional
  7. truth-functional logic
  8. truth-telling
  9. Truthall
  10. truthaphobia
  11. truthbearer

Source and license

Adapted from Wiktionary: truth-functional (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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