Vehement (adjective) — شديد وعنيف: Showing strong feeling; forceful. Below are 7 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
Showing strong feeling or enthusiasm.
Showing a heartfelt and powerful intensity; violent.
Showing strong feelings of enthusiasm, passion, or devotion; burning with intense commitment toward a cause or goal
Having or showing passionate intensity.
forcefulintensestrong