PROBLEM

trouble, problem

(noun) a source of difficulty; “one trouble after another delayed the job”; “what’s the problem?”

problem

(noun) a question raised for consideration or solution; “our homework consisted of ten problems to solve”

problem, job

(noun) a state of difficulty that needs to be resolved; “she and her husband are having problems”; “it is always a job to contact him”; “urban problems such as traffic congestion and smog”

Source: WordNet® 3.1

Etymology

Noun

problem (plural problems)

A difficulty that has to be resolved or dealt with.

A question to be answered, schoolwork exercise.

A puzzling circumstance.

Objection.

(climbing) A set of moves required to complete a climb

Antonyms

• solution

Hyponyms

• Entscheidungsproblem

Adjective

problem (comparative more problem, superlative most problem)

(of a person or an animal) Difficult to train or guide; unruly.

Causing a problem; problematic; troublesome.

Source: Wiktionary

Prob"lem, n. Etym: [F. problème, L. problema, fr. Gr. Parable. ]

1. A question proposed for solution; a matter stated for examination or proof; hence, a matter difficult of solution or settlement; a doubtful case; a question involving doubt. Bacon.

2. (Math.)

Definition: Anything which is required to be done; as, in geometry, to bisect a line, to draw a perpendicular; or, in algebra, to find an unknown quantity.

Note: Problem differs from theorem in this, that a problem is something to be done, as to bisect a triangle, to describe a circle, etc.; a theorem is something to be proved, as that all the angles of a triangle are equal to two right angles. Plane problem (Geom.), a problem that can be solved by the use of the rule and compass.

– Solid problem (Geom.), a problem requiring in its geometric solution the use of a conic section or higher curve.

Source: Webster’s Unabridged Dictionary 1913 Edition