Not too keen (4)
I believe the answer is:
dull
(Other definitions for dull that I've seen before include "Drab" , "Uninteresting, tedious" , "Lacking brightness" , "Lacking interest" , "Lacking in liveliness or animation" .)
I believe the answer is:
dull
(Other definitions for dull that I've seen before include "Drab" , "Uninteresting, tedious" , "Lacking brightness" , "Lacking interest" , "Lacking in liveliness or animation" .)