This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Hard to do or accomplish; demanding considerable effort or skill; arduous: "To entertain is far more difficult than to enlighten” ( Anthony Burgess). See Synonyms at hard.

adj. Hard to endure; trying: fell upon difficult times.

adj. Hard to comprehend or solve: a difficult puzzle.

adj. Hard to please, satisfy, or manage: a difficult child.

adj. Hard to persuade or convince; stubborn.

adj. hard, not easy, requiring much effort

adj. hard to manage, uncooperative, troublesome; eg. said of a person, a horse, etc.

v. To make difficult; to impede; to perplex.

adj. Hard to do or to make; beset with difficulty; attended with labor, trouble, or pains; not easy; arduous.

adj. Hard to manage or to please; not easily wrought upon; austere; stubborn.

v. To render difficult; to impede; to perplex.

Not easy; requiring or dependent on effort; hard; troublesome; arduous.

Hard to do, perform, or overcome; attended with labor, pains, or opposition; laborious: as, a difficult undertaking.

Hard to please or satisfy; not compliant; unaccommodating; rigid; austere: as, a person of difficult temper.

Hard to persuade or induce; stubborn in yielding; obstinate as to opinion: as, he was difficult to convince.

Hard to understand or solve; perplexing; puzzling: as, a difficult passage in an author; a difficult question or problem.

Synonyms Difficult, Hard, Arduous (see arduous), laborious, toilsome; obscure, knotty.

To make difficult; impede.

To perplex; embarrass.

adj. hard to control

adj. not easy; requiring great physical or mental effort to accomplish or comprehend or endure

"It is of course extremely difficult to collect satisfactory data on such a point, —difficult to reach the men, to get trustworthy testimony, and to gauge that testimony by any generally acceptable criterion of success."

uncheckable    ungovernable    uncontrollable    indocile    unruly    problematical    rocky    baffling    vexed    trying   

laborious    crabbed    perplexed    troublesome    painful    arduous    unaccommodating    austere    stubborn    impede   

dangerous    easy    important    impossible    critical    excite