Without slope or bump (4)
I believe the answer is:
flat
(Other definitions for flat that I've seen before include "one or more in uniform" , "Apartment; plane" , "12 [TWO DIMENSIONAL]" , "unexciting" , "Prostrate" .)
I believe the answer is:
flat
(Other definitions for flat that I've seen before include "one or more in uniform" , "Apartment; plane" , "12 [TWO DIMENSIONAL]" , "unexciting" , "Prostrate" .)