망측해요 · 망측했어요 · 망측한 (+noun)
outrageous, shameful, indecent
Example
도대체 이런 망측한 소문이 어디서 나온 거예요?
Where on earth did such an outrageous rumor come from?
Word parts
망 not+측 measure
Literally 'beyond measuring' — too absurd to believe.
Good to know
The exclamation 망측해라! is what an older person says at something shocking or indecent.
Related words