Synonyms of the word 
UNFLATTERING → UNCOMPLIMENTARY
unflattering
- adj. Not flattering.
uncomplimentary
- adj. Not complimentary.
If you are interested in words, visit the following sites :
- wiktionary.org/unflattering For complete definition of a word
- 1word.ws/unflattering to play with words, suffixs, prefixs, etc.