Thesaurus.com
Dictionary.com
Definitions

unsolved

ADJECTIVE
insoluble
Synonyms
WEAK
baffling difficult impenetrable indecipherable inexplicable inextricable irresolvable mystifying obscure unaccountable unconcluded unfathomable unresolved unsolvable
Antonyms
WEAK
explainable explicable obvious open solvable
ADJECTIVE
unresolved
Synonyms
STRONGEST
moot pending unanswered undecided undetermined unsettled
WEAK
betwixt and between changing doubtful faltering hesitant hesitating hot-and-cold incomplete indecisive irresolute open to question problematical pussyfooting unconcluded unfinished up in the air vacillating vague waffling
Antonyms
STRONGEST
certain decided definite determined settled sure
WEAK
resolved solved

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The partnership will seek to deploy autonomous vehicles in unsolved areas, such as the intersection of roadways, bike lanes and road-adjacent spaces.

From The Wall Street Journal • Mar. 31, 2026

The worst seems to be over with no newly confirmed cases for a week, but there is still an unsolved mystery - why did this outbreak occur?

From BBC • Mar. 27, 2026

News of Guthrie’s abduction 18 days ago has triggered a swell of public interest that’s grown as the case goes unsolved.

From Los Angeles Times • Feb. 18, 2026

Most puzzles remained unsolved due to their difficulty.

From Science Daily • Feb. 15, 2026

Whether they died from their disease or the so-called cure they were given, their fates—and Isaac’s silence about his family—remain unsolved mysteries.

From "In the Shadow of Liberty" by Kenneth C. Davis