truthism

/T R UW1 TH IH1 Z AH0 M/
noun
  1. 1

    (uncountable) A belief in the importance of truth and objective facts.

  2. 2

    (countable, nonstandard) A truism; something commonly accepted to be true.

  3. 3

    (uncountable, derogatory) Trutherism; the beliefs of conspiracy theorists.