Profound

adjective
prə'faʊnd
7 synonyms1 antonym

Synonyms

adjective — far-reaching and thoroughgoing in effect especially on the nature of something
adjective — situated at or extending to great depth; too deep to have been sounded or plumbed
  • Unfathomed
  • Unplumbed
  • Unsounded
adjective — (of sleep) deep and complete

Antonyms

adjective — showing intellectual penetration or emotional depth