Very uncertain (4)

I believe the answer is:

iffy

(Other definitions for iffy that I've seen before include "Not to be trusted" , "Not certain, doubtful" , "Unsure" , "Problematic" , "Sixth (RU) Nation" .)

I've seen this clue in the Newsday and the Universal.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.