Synonyms of the word 
CHOPPINESS → ROUGHNESS - STORMINESS
choppiness
- n. the state of being choppy.
roughness
- n. The property of being rough, coarseness.
storminess
- n. (uncountable) The state or quality of being stormy.
- n. (countable) The severity of a storm.
If you are interested in words, visit the following sites :
- wiktionary.org/choppiness For complete definition of a word
- 1word.ws/choppiness to play with words, suffixs, prefixs, etc.