Antonyms of adj skin-deep

1 sense of skin-deep

Sense 1
skin-deep -- (penetrating no deeper than the skin: "her beauty is only skin-deep")

INDIRECT (VIA superficial) -> profound -- (showing intellectual penetration or emotional depth; "the differences are profound"; "a profound insight"; "a profound book"; "a profound mind"; "profound contempt"; "profound regret")

Similarity of adj skin-deep

1 sense of skin-deep

Sense 1
skin-deep -- (penetrating no deeper than the skin: "her beauty is only skin-deep")
       => superficial (vs. profound) -- (concerned with or comprehending only what is apparent or obvious; not deep or penetrating emotionally or intellectually; "superficial similarities"; "a superficial mind"; "his thinking was superficial and fuzzy"; "superficial knowledge"; "the superficial report didn't give the true picture"; "only superficial differences")