Pronunciation: (strīd'nt),[key] —adj. 1. making or having a harsh sound; grating; creaking: strident insects; strident hinges. 2. having a shrill, irritating quality or character: a strident tone in his writings. 3. Ling.(in distinctive feature analysis) characterized acoustically by noise of relatively high intensity, as sibilants, labiodental and uvular fricatives, and most affricates.