Lacking in liveliness or colour (4)

I believe the answer is:

dull

(Other definitions for dull that I've seen before include "Lacking brightness" , "Drab" , "Overcast or uninteresting" , "Thick" , "Slow-witted - tedious - cloudy" .)

I've seen this clue in The Irish Times.

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.