Elementary (A2)
IPA: /ˈbʌmpɪnəs/
KK: /ˈbʌmpɪnɪs/
Definition
The quality or state of having many bumps or uneven surfaces.
Example
The bumpiness of the road made the ride uncomfortable.
Conversation

Did you notice the bumpiness of the road on our way here?

Yeah, it was really rough in some places!

I thought it would never end; the bumpiness made it so uncomfortable.

Definitely! Next time, we should take a different route.
Synonyms & Antonyms
Synonyms
roughness
irregularity
unevenness
Antonyms
smoothness
flatness
evenness
Root Explanation
Bumpiness → It is formed from "bump" (of uncertain origin, possibly imitative of the sound) and "-iness" (meaning the quality of). The word "bumpiness" refers to the quality of being bumpy or having bumps.
Memory Tip
Think of the word 'bump' to remember that 'bumpiness' means the quality of having bumps.
Visually Confused Words
lumpiness
jumpiness
humpiness
dumpiness
stumpiness
grumpiness
glumpiness
frumpiness