say it: proh-FOWND
profound is an adjective meaning "showing intellectual penetration or emotional depth". It carries 6 recorded senses.
showing intellectual penetration or emotional depth
“the differences are profound”
“a profound insight”
“a profound book”
“a profound mind”
“profound contempt”
“profound regret”
far-reaching and thoroughgoing in effect especially on the nature of something
“the fundamental revolution in human values that has occurred”
“the book underwent fundamental changes”
“committed the fundamental error of confusing spending with extravagance”
“profound social changes”
situated at or extending to great depth; too deep to have been sounded or plumbed
“the profound depths of the sea”
“the dark unfathomed caves of ocean”
“unplumbed depths of the sea”
“remote and unsounded caverns”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for profound come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.