Crossword Genius

Not at all certain (4)

Ross

I believe the answer is:

iffy

'not at all certain' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for iffy that I've seen before include "Dubious, risky (inf.)" , "Questionable - uncertain" , "Colloquially uncertain or doubtful" , "Unsure" , "Not to be trusted" .)

I've seen this clue in the Newsday and the Penny Press.
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