contradiction vs irony

contradiction

noun
  • The act of contradicting. 

  • A statement that contradicts itself, i.e., a statement that claims that the same thing is true and that it is false at the same time and in the same senses of the terms. 

  • A logical inconsistency among two or more elements or propositions. 

  • A proposition that is false for all values of its propositional variables or Boolean atoms. 

irony

noun
  • Socratic irony: ignorance feigned for the purpose of confounding or provoking an antagonist. 

  • Contradiction between circumstances and expectations; condition contrary to what might be expected. 

  • Dramatic irony: a theatrical effect in which the meaning of a situation, or some incongruity in the plot, is understood by the audience, but not by the characters in the play. 

  • The quality of a statement that, when taken in context, may actually mean something different from, or the opposite of, what is written literally; the use of words expressing something other than their literal intention, often in a humorous context. 

  • An ironic statement. 

adj
  • Of or pertaining to the metal iron. 

  • The food had an irony taste to it. 

How often have the words contradiction and irony occurred in a corpus of books? (source: Google Ngram Viewer )