- any question or matter involving doubt, uncertainty, or difficulty.
- a question proposed for solution or discussion.
- Mathematics. a statement requiring a solution, usually by means of a mathematical operation or geometric construction.
- difficult to train or guide; unruly: a problem child.
- Literature. dealing with choices of action difficult either for an individual or for society at large: a problem play.
- no problem, (used as a conventional reply to a request or to express confirmation, affirmation, or gratitude).
Origin of problem
- any thing, matter, person, etc, that is difficult to deal with, solve, or overcome
- (as modifier)a problem child
- a puzzle, question, etc, set for solution
- maths a statement requiring a solution usually by means of one or more operations or geometric constructions
- (modifier) designating a literary work that deals with difficult moral questionsa problem play
Word Origin and History for subproblem
late 14c., "a difficult question proposed for solution," from Old French problème (14c.) and directly from Latin problema, from Greek problema "a task, that which is proposed, a question;" also "anything projecting, headland, promontory; fence, barrier;" also "a problem in geometry," literally "thing put forward," from proballein "propose," from pro "forward" (see pro-) + ballein "to throw" (see ballistics).
Meaning "a difficulty" is mid-15c. Mathematical sense is from 1560s in English. Problem child first recorded 1920. Phrase _______ problem in reference to a persistent and seemingly insoluble difficulty is attested at least from 1882, in Jewish problem. Response no problem "that is acceptable; that can be done without difficulty" is recorded from 1968.
Idioms and Phrases with subproblem
see no problem.