Antonyms of adj facile

3 senses of facile

Sense 1
facile -- (arrived at without due care or effort; lacking depth; "too facile a solution for so complex a problem")

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")

Sense 2
facile -- (performing adroitly and without effort; "a facile hand")

INDIRECT (VIA effortless) -> effortful -- (requiring great physical effort)

Sense 3
eloquent, facile, fluent, silver, silver-tongued, smooth-spoken -- (expressing yourself readily, clearly, effectively; "able to dazzle with his facile tongue"; "silver speech")

INDIRECT (VIA articulate) -> inarticulate, unarticulate -- (without or deprived of the use of speech or words; "inarticulate beasts"; "remained stupidly inarticulate and saying something noncommittal"; "inarticulate with rage"; "an inarticulate cry")

Similarity of adj facile

3 senses of facile

Sense 1
facile -- (arrived at without due care or effort; lacking depth; "too facile a solution for so complex a problem")
       => 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")

Sense 2
facile -- (performing adroitly and without effort; "a facile hand")
       => effortless (vs. effortful) -- (requiring or apparently requiring no effort; "the swallows glided in an effortless way through the busy air")

Sense 3
eloquent, facile, fluent, silver, silver-tongued, smooth-spoken -- (expressing yourself readily, clearly, effectively; "able to dazzle with his facile tongue"; "silver speech")
       => articulate (vs. inarticulate) -- (expressing yourself easily or characterized by clear expressive language; "articulate speech"; "an articulate orator"; "articulate beings")