How To Pronounce Countless

In British English, countless is pronounced /ˈkaʊnt.ləs/ or /ˈkaʊnt.lɪs/. The narrow phonetic transcription is [ˈkʰaʊ̃nt.ləs]. In American English, it is pronounced /ˈkaʊnt.ləs/.

Countless has two syllables, and the main stress falls on the first syllable. British and American speakers say it the same way.

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.