Synonyms of tautology

Noun

1. tautology, truth, true statement

usage: (logic) a statement that is necessarily true; "the statement `he is brave or he is not brave' is a tautology"

2. tautology, repetitiveness, repetitiousness

usage: useless repetition; "to say that something is `adequate enough' is a tautology"

Definition and meaning of tautology (Dictionary)