unsolved
Without an answer
Unsolved describes something that remains without a solution or answer.
Most often applied to crimes, mysteries, or problems that have resisted attempts at resolution: an unsolved murder, unsolved mysteries, The case remains unsolved after thirty years.
The word implies that effort has been made—a problem no one has tried to solve is simply unaddressed.
Lacking final determination
- undecidedNot having chosen
- open-endedLacking fixed boundaries
- inconclusiveNot yielding a decision
- pendingAwaiting resolution or decision
uncertain · unanswered · lingering · outstanding · unclear · undetermined · hanging · open
Puzzling question to solve
- enigmaSomething hard to fathom
- conundrumPerplexing problem or question
- brainteaserPuzzle demanding clever thought
- cryptogramCoded message puzzle
cipher · code · problem · equation · theorem · conjecture · paradox · question
unresolved
Lacking final determination
- undecidedNot having chosen
- open-endedLacking fixed boundaries
- inconclusiveNot yielding a decision
pending · uncertain · unanswered · lingering · outstanding · unclear · undetermined · hanging · open · debatable
riddle
Puzzling question to solve
- enigmaSomething hard to fathom
- conundrumPerplexing problem or question
- brainteaserPuzzle demanding clever thought
cryptogram · cipher · code · problem · equation · theorem · conjecture · paradox · question · challenge
cold case
Unsolved crime, investigation suspended
- murderDeliberate unlawful killing
- crimePunishable illegal act
- detectiveProfessional crime investigator
clue · mystery · disappearance · whodunit · suspect · evidence · lead · sleuth · forensics · motive
- Game Outcomeswin, loss, completion, failure, success
- mysteriesmystery, enigma, enigmas, puzzle, riddle
- mysteriousmysterious, cryptic, enigmatic, arcane, obscure
- unknownsmystery, enigma, puzzle, riddle, uncertain
- statusstatus, prestige, ranking, reputation, elite
- Missingmissing, vanished, disappeared, lost, gone
unsolvedsolved
Found the answer to
resolved · cracked · closed · figured out · worked out
- unsolved mysteryPuzzle lacking resolution
- unsolved casesInvestigations without resolution
- unsolved murder
- Unsolved MysteriesPuzzles lacking definitive explanations
- unsolved problems