What does tautologically mean?
Tautologically means in a way that is tautological: either true by definition or expressed by repeating the same idea in different words without adding meaningful information. The word is especially common in discussions of logic, rhetoric, philosophy, and criticism, where it identifies statements that appear substantial but are actually circular or redundant. For example, saying that “all bachelors are unmarried men” is tautologically true because the definition of bachelor already includes being unmarried. The adverb carries a formal, analytical tone and is often used to explain why a claim lacks explanatory or argumentative value. It is useful because it distinguishes statements that are merely uninformative from statements that are false: a tautological statement may be perfectly true while still saying nothing new. The term ultimately comes from the Greek roots for “same” and “word,” reflecting its long-standing association with repetition and circular expression.
adverbIn a tautological manner; in a way that is true by definition or circularly repetitive and adds no substantive information.
- In a tautological manner; redundantly or circularly, with no substantive information added.
"The claim that “all unmarried people are single” is tautologically true, but it offers no useful information."
"The speaker’s conclusion was tautologically true: it merely restated the premise in different words."
"By defining courage as the absence of fear, the definition becomes tautologically true without explaining the concept."
Tautologically is the adverb for describing a claim that sounds informative while proving only what its own words already say.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of tautologically
The English adverb is formed from tautological, which in turn comes from tautology. Tautology entered English through Latin from the Greek tautologia, built from tautos, meaning “the same,” and logos, meaning “word,” “account,” or “reasoning.” Its meaning has long centered on repetition that adds nothing, while related uses describe a proposition that is true because of how its terms are defined. The related forms tautological and tautologic reflect the same linguistic root.
Related word forms
How tautologically is actually used
Formal and primarily associated with logic, rhetoric, philosophy, and criticism. It can describe either a statement that is necessarily true because of its definitions or an argument that is circular and therefore uninformative.