English edit

Etymology edit

From un- +‎ tumultuous.

Pronunciation edit

Adjective edit

untumultuous (comparative more untumultuous, superlative most untumultuous)

  1. Not tumultuous; calm, placid.
    • 1818, John Keats, To J. H. Reynolds, Esq.:
      the wide sea did weave / An untumultuous fringe of silver foam / Along the flat brown sand.