axioms Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a statement or principle that requires no proof because its truth is obvious Example Sentence Christian axioms are widely accepted by many people. Synonyms principle; adage; aphorism; apothegm Antonyms absurdity; ambiguity; foolishness; nonsense Hear It! Say It! Write It! axioms Switch to cursive Start Share with your friends: