problema
Something needing resolution
Problema is Spanish and Portuguese for problem.
In English, it appears almost exclusively in the phrase no problema, a casual way of saying "no problem" or "you're welcome." The Spanish is actually no hay problema (there is no problem), but the shortened form has become standard in informal English.
Something blocking the way
- difficultyState of being hard
- hardshipSuffering from difficult circumstances
- adversitySevere difficulty or suffering
- struggleLabored effort against resistance
complication · setback · hurdle · barrier · impediment · snag · hitch · roadblock
State of perplexity
- conundrumPerplexing problem or question
- predicamentDifficult, unpleasant situation
- choiceAct of selecting
- decisionSettled course of action
trade-off · catch-22 · impasse · stalemate · deadlock · paradox · conflict · tension
Puzzling question to solve
- enigmaSomething hard to fathom
- mysterySomething unexplained or unknown
- brainteaserPuzzle demanding clever thought
- crosswordClue-based letter grid
sudoku · jigsaw · cryptogram · cipher · conundrum · head-scratcher · stumper · teaser
Mathematical equality assertion
- algebraMath using symbols
- geometryScience of spatial relationships
- calculusMathematical analysis system
- proofDemonstration of truth
theorem · solution · variable · unknown · formula · computation · arithmetic · logic
obstacle
Something blocking the way
- difficultyState of being hard
- hardshipSuffering from difficult circumstances
- adversitySevere difficulty or suffering
struggle · complication · setback · hurdle · barrier · impediment · snag · hitch · roadblock · bottleneck
quandary
State of perplexity
- conundrumPerplexing problem or question
- predicamentDifficult, unpleasant situation
- choiceAct of selecting
decision · trade-off · catch-22 · impasse · stalemate · deadlock · paradox · conflict · tension · ambivalence
riddle
Puzzling question to solve
- enigmaSomething hard to fathom
- mysterySomething unexplained or unknown
- brainteaserPuzzle demanding clever thought
crossword · sudoku · jigsaw · cryptogram · cipher · conundrum · head-scratcher · stumper · teaser · challenge
equation
Mathematical equality assertion
- algebraMath using symbols
- geometryScience of spatial relationships
- calculusMathematical analysis system
proof · theorem · solution · variable · unknown · formula · computation · arithmetic · logic · homework
emergency
Serious sudden danger
- disasterSudden ruinous event
- catastropheDevastating, large-scale misfortune
- meltdownCatastrophic loss of control
collapse · turmoil · chaos · calamity · fiasco · debacle · nightmare · mess · quagmire · morass
matter
Space-occupying substance with mass
topic · point · affair · situation · case · circumstance · controversy · dispute · grievance · complaint
- no problemCasual acceptance or dismissal
- not a problemCasual agreement to help
- math problemQuestion requiring computation
- drinking problemAddiction to alcohol
- word problemsMath in narrative form
- problem solvingAddressing challenges systematically
problem, problems, problematic, problematical, unproblematic, problematically, nonproblematic