drawn back and in; "a cat with retracted claws"

ɹəˈtɹæktəd] - adjective for a sound that occurs with the active articulator somewhat further back in the mouth than it usually is (or further back than the IPA symbol without any diacritics might suggest).

In phonetics, a retracted or backed sound is one that is pronounced further to the back of the vocal tract than some reference point. The diacritic for this in the International Phonetic Alphabet is the under-bar, . Both consonants and vowels may be marked as retracted.