Vokal tak bundar depan sempit ialah sejenis bunyi vokal yang terdapat dalam kebanyakan bahasa lisan, dilambangkan oleh aksara i dalam Abjad Fonetik Antarabangsa (IPA), dan i dalam X-SAMPA.
Dalam bahasa Melayu, vokal tak bundar depan sempit dilambangkan oleh huruf i, contohnya: ibu, bintang, hari.
Ciri-ciri
Ketinggian vokalnya adalah sempit, iaitu lidah terletak dekat sekali dengan lelangit tanpa menyebabkan penjerutan yang sebaliknya menghasilkan konsonan.
Kebelakangan vokalnya adalah depan, iaitu lidah terletak di depan sekali dalam mulut tanpa menyebabkan penjerutan yang sebaliknya menghasilkan konsonan.
Vokal ini adalah tidak bundar, iaitu bibir dihamparkan.
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