profound
pro-found
adjective
Demonstrating deep understanding, great knowledge, or intellectual insight.
"She offered a profound analysis of the situation."
adjective
Extremely great or intense, often referring to feelings, effects, or changes.
"The decision had a profound impact on his life."
Thesaurus
Synonyms: intense, deep, significant, fundamental, important, unplumbed, unfathomed, unsounded, thoughtful, sound, heavy, wakeless
Antonyms: superficial