How to pronounce authentic

au·THEN·tic

"authentic" has 3 syllables. The stress is on the second syllable: THEN.

Sounds like

uh-THEN-tik

IPA (American)

/əˈθɛntɪk/

Rhythm

da-DAAA-da

Words ending in -ic put the stress right before the ending. The same rule works for many other words.