bumpy
Concise Oxford English Dictionary © 2008 Oxford University Press:
bumpy/ˈbʌmpi/
▶adjective (bumpier, bumpiest) (of a surface) uneven.
■ (of movement) involving sudden jolts and jerks.
– derivatives
bumpily adverb,
bumpiness noun.
bumpily adverb,
bumpiness noun.
'bumpy' also found in these Oxford entries:

