Synonyms of the word 
UNSWEETENED → NONSWEET - SUGARLESS
unsweetened
- adj. Not sweetened.
nonsweet
- adj. Not having a sweet taste.
sugarless
- adj. Containing no refined sugar as an ingredient.
If you are interested in words, visit the following sites :
- wiktionary.org/unsweetened For complete definition of a word
- 1word.ws/unsweetened to play with words, suffixs, prefixs, etc.