DIFFICULT
difficult, hard
(adjective) 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”; “why is it so hard for you to keep a secret?”
unmanageable, difficult
(adjective) hard to control; “a difficult child”; “an unmanageable situation”
Source: WordNet® 3.1
Etymology
Adjective
difficult (comparative difficulter or more difficult, superlative difficultest or most difficult)
Hard, not easy, requiring much effort.
(often of a, person, or a horse, etc) Hard to manage, uncooperative, troublesome.
(obsolete) Unable or unwilling.
Usage notes
Difficult implies that considerable mental effort or physical skill is required, or that obstacles are to be overcome which call for sagacity and skill in the doer; as, a difficult task. Thus, "hard" is not always synonymous with difficult: Other examples include a difficult operation in surgery and a difficult passage by an author (that is, a passage which is hard to understand).
Synonyms
• burdensome, cumbersome, hard
• see also difficult
Verb
difficult (third-person singular simple present difficults, present participle difficulting, simple past and past participle difficulted)
(obsolete, transitive) To make difficult; to impede; to perplex.
Source: Wiktionary
Dif"fi*cult, a. Etym: [From Difficulty.]
1. Hard to do or to make; beset with difficulty; attended with labor,
trouble, or pains; not easy; arduous.
Note: Difficult implies the notion that considerable mental effort or
skill is required, or that obstacles are to be overcome which call
for sagacity and skill in the agent; as, a difficult task; hard work
is not always difficult work; a difficult operation in surgery; a
difficult passage in an author.
There is not the strength or courage left me to venture into the
wide, strange, and difficult world, alone. Hawthorne.
2. Hard to manage or to please; not easily wrought upon; austere;
stubborn; as, a difficult person.
Syn.
– Arduous; painful; crabbed; perplexed; laborious; unaccommodating;
troublesome. See Arduous.
Dif"fi*cult, v. t.
Definition: To render difficult; to impede; to perplex. [R.] Sir W. Temple.
Source: Webster’s Unabridged Dictionary 1913 Edition