How To Pronounce Unprecedented

In British English, unprecedented is pronounced /ʌnˈpres.ɪ.den.tɪd/. The narrow phonetic transcription is [ʌ̃nˈpr̥es.ɪ.dẽn.tɪd̚]. In American English, it is pronounced /ʌnˈpres.əˌden.t̯əd/.

Unprecedented has five syllables, and the main stress falls on the second syllable. The British and American pronunciations are different, so listen to both.

Slashes / / show the phonemic transcription, the sounds that change meaning. Square brackets [ ] show the phonetic transcription, with the finer detail of how the sounds are actually made.