1. not circulating or flowing (Freq. 2) - dead air - dead water - stagnant water • Syn: dead • Similar to: standing • Derivationally related forms: stagnancy, stagnate, deadness (for: dead) 2. not growing or changing; without force or vitality • Syn: moribund • Similar to: undynamic, adynamic • Derivationally related forms: stagnancy, stagnate