<p><strong>Adjective</strong></p><ul><li>(of a phrase) Needlessly repetitive without adding information or clarity: "Third-world communist regimes, with tautological insistence, call themselves 'people's democracies.'"</li><li>(especially in logic) Defined in terms of itself: Some would argue that the phrase "survival of the fittest" is tautological, in that the fittest are defined as those that survive to reproduce.</li></ul><p><strong>End of Response</strong></p>