meaning of chasam
1 A deep fissure in the earthâs surface: a chasm a mile long figurative he was engulfed in a chasm of despair. More example sentences. Synonyms. 1  The movie also shows a panoramic view of the mountains, deep chasms and valleys going into oblivion and the sounds of crackling icicles and snowstorms. A deep fissure in the earthâs surface: a chasm a mile long figurative he was engulfed in a chasm of despair. More example sentences. Synonyms. 1  The movie also shows a panoramic view of the mountains, deep chasms and valleys going into oblivion and the sounds of crackling icicles and snowstorms.