no clue
I'm completely stumped
No clue means complete ignorance about something.
It's slightly more emphatic than simply saying you don't know: I have no clue where she went.
The phrase often appears with intensifiers: I have absolutely no clue what you're talking about.
Someone described as having no clue lacks basic understanding or awareness: He has no clue how to talk to people.
State of being baffled
- bafflementMental state of confusion
- perplexedThoroughly confused, uncertain
- stumpedUnable to solve
- flummoxedUtterly perplexed
nonplussed · dumbfounded · befuddled · discombobulated · mystified · lost · puzzled · disoriented
State of not knowing
- uninformedLacking necessary knowledge
- obliviousLacking any awareness
- unawareLacking knowledge of something
- unknowingLacking awareness or information
in the dark · blind · unacquainted · unfamiliar · out of the loop · none the wiser · naivety · inexperience
Something hard to fathom
- unsolvedNot yet figured out
- conundrumPerplexing problem or question
- riddlePuzzling question to solve
- puzzleChallenge testing ingenuity
cryptic · secrets · unknown · inscrutable · whodunit · baffling · inexplicable · unfathomable
Lack of firm belief
- indecisionFailure to decide
- hesitationDelay from uncertainty
- ambiguityOpenness to multiple interpretations
- unclearNot easily understood
vagueness · guessing · unsure · questionable · indefinite · undetermined · up in the air · anyone's guess
bewilderment
State of being baffled
- bafflementMental state of confusion
- perplexedThoroughly confused, uncertain
- stumpedUnable to solve
flummoxed · nonplussed · dumbfounded · befuddled · discombobulated · mystified · lost · puzzled · disoriented · foggy
unawareness
State of not knowing
- uninformedLacking necessary knowledge
- obliviousLacking any awareness
- unawareLacking knowledge of something
unknowing · in the dark · blind · unacquainted · unfamiliar · out of the loop · none the wiser · naivety · inexperience · unschooled
enigma
Something hard to fathom
puzzle · cryptic · secrets · unknown · inscrutable · whodunit · baffling · inexplicable · unfathomable · impenetrable
doubt
Lack of firm belief
- indecisionFailure to decide
- hesitationDelay from uncertainty
- ambiguityOpenness to multiple interpretations
unclear · vagueness · guessing · unsure · questionable · indefinite · undetermined · up in the air · anyone's guess · unpredictable
no clueclued in
Made aware of something
enlightened · well-informed · in the know · certainty · crystal clear