profound (adj.)

• absolute
• absorbing
• abstract
• abstruse
• abysmal
• acute
• analytical
• ankle-deep
• arcane
• arrant
• astronomic
• astute
• awful
• broad-minded
• civilized
• classical
• colossal
• complete
• consummate
• crass
• cryptic
• cultivated
• cultured
• decided
• deep
• deep-laid
• deep-rooted
• deep-seated
• deep-set
• definitive
• discerning
• downright
• educated
• egregious
• elephantine
• encyclopedic
• enigmatic
• enormous
• epic
• erudite
• esoteric
• extreme
• flagrant
• giant
• gigantic
• glaring
• great
• gross
• hard
• heartfelt
• heavy
• hermetic
• heroic
• hidden
• huge
• immense
• incomprehensible
• indecipherable
• indelible
• infinite
• informed
• inscrutable
• insightful
• intellectual
• intense
• intolerable
• intricate
• involved
• jumbo
• keen
• knee-deep
• knotty
• knowing
• knowledgeable
• learned
• lettered
• literate
• mammoth
• mighty
• monstrous
• monumental
• mountainous
• mysterious
• mystifying
• obscure
• occult
• out-and-out
• outright
• overpowering
• overwhelming
• penetrating
• perfect
• piercing
• poignant
• positive
• precious
• prodigious
• pronounced
• proper
• puzzling
• rank
• recondite
• regular
• sagacious
• sage
• sapient
• scholarly
• scholastic
• secret
• sharp
• shattering
• shocking
• sincere
• stark
• studious
• stupendous
• subtle
• superlative
• surpassing
• terrible
• thorough
• thoroughgoing
• titanic
• total
• towering
• transcendental
• tremendous
• tricky
• unbearable
• unconscionable
• undeniable
• unequivocal
• unfathomable
• unmitigated
• unqualified
• unrelieved
• unspoiled
• utter
• vast
• well-informed
• well-read
• wise