-IAL


Meaning of -IAL in English

-ial stress-imposing BrE AmE i‿əl —This suffix sometimes causes a change in the stressed vowel: ˌ mana ˈ gerial -ˈdʒɪər i‿əl AmE \ -ˈdʒɪr-

Longman Pronunciation English Dictionary.      Английский словарь произношений Longman.