Difficult
[adj] not easy; requiring great physical or mental effort to accomplish or comprehend or endure; "a difficult task"; "nesting places on the cliffs are difficult of access"; "difficult times"; "a difficult child"; "found himself in a difficult situation"; "why is it so hard for you to keep a secret?"
[adj] requiring much effort and trouble; "the mountain climb was long, steep, and difficult"
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Synonyms
ambitious, arduous, awkward, baffling, catchy, challenging, delicate, embarrassing, fractious, hard, hard-fought, Herculean, knotty, nasty, problematic, problematical, rocky, rough, rugged, serious, sticky, stubborn, tall(a), thorny, ticklish, tight, toug
Related Terms
abstruse, adverse, antagonistic, arduous, awkward, baffling, beyond one, bloody-minded, brutal, burdensome, cantankerous, complex, complicated, conflicting, contrary, counter, counteractive, crabbed, cramp, critical, cross-grained, dark, delicate, demandi