<p><strong>adjective</strong></p><ul><li>not lasting, enduring, or permanent;</li><li>transitory.</li><li>lasting only a short time;</li><li>existing briefly;</li><li>temporary:<ul><li>transient authority.</li></ul></li></ul><p><strong>Synonyms</strong></p><ul><li>evanescent,</li><li>fugitive,</li><li>flying,</li><li>fleeting</li></ul><p><strong>Antonyms</strong></p><ul><li>permanent</li></ul><p><strong>noun</strong></p><ul><li>a person or thing that is transient, especially a temporary guest, boarder, laborer, or the like.</li><li>Mathematics: a function that tends to zero as the independent variable tends to infinity; a solution, especially of a differential equation, having this property.</li><li>Physics: a nonperiodic signal of short duration; a decaying signal, wave, or oscillation.</li><li>Electricity: a sudden pulse of voltage or current.</li></ul>