unresolvedformal

SMART Vocabulary: related words and phrases

Complicated and difficult to do
advanced
ambitious
ambitiously
another
arduous
formidable
formidably
get blood out of/from a stoneidiom
grail
gruelling
onerous
onerously
overdemanding
painstaking
picnic
toughen
trickily
tricky
tuff
ultra-sensitive

unsolved | American Dictionary

unsolved
adjective
us/ʌnˈsɑlvd, -ˈsɔlvd/
not solved or explained:
The detective has spent seven years investigating the unsolved crime.

Examples of unsolved

unsolved
However, many problems have remained unsolved, and many supposed facts need to be revised in the light of recent research.
Puzzles and unsolved identities are resolved, blame is assigned, and peace is reestablished.
Resistance to chemotherapeutic drugs continues to be one of the major unsolved problems in the treatment of cancer.
This is, alas, an unsolved question, open since it was first formulated in the early 1970s.
However, the molecular mechanism by which both cells advance their inner lip (inner mesaxon) around axons several times for myelination remains unsolved.
The victim-centred perspective provided by reports of unsolved crimes had largely disappeared by 1821.
The authors' overview of this area is a considerable advance on earlier attempts, but there are still plenty of unsolved problems.
In the majority of these cases the program will find the explicit form of the conservation law, otherwise it will return unsolved equations.
While covering similar ground, the books are complementary in providing different perspectives on one of science's greatest unsolved mysteries.
Although technologies are now available, the quest for a reduction of this burden remains unsolved.
The unsolved problem here is to explain exceptions such as cog (always with the lax vowel) and dog (always with the tense vowel).
The main unsolved question remained that of the complete recognition of private property.
There are still many unsolved problems concerning these ideas, among them the following.
Statistics of criminal cases that remained unsolved were used as proof of this argument.
Sadly, it remains a fact that the nature of the pathologic mechanisms is still unsolved.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.