" unpalatable "

1: disagreeable or disgusting to the sense of taste;

  * e.g., " ... pasta and honey is an unpalatable combination "

•  Synonyms : 

•  brackish,

•  distasteful,

•  unappetizing,

•  unsavory,

•  yucky

•  Antonyms : 

•  appetizing,

•  delectable,

•  delicious,

•  delish,

•  palatable,

•  savory,

•  tasty,

•  toothsome,

•  yummy

2: not giving pleasure to the mind or senses;

  * e.g., " ... hesitated before sharing some of the more unpalatable details of his captivity "

•  Synonyms : 

•  bad,

•  bitter,

•  disagreeable,

•  displeasing,

•  distasteful,

•  harsh,

•  icky,

•  nasty,

•  rotten,

•  sour,

•  uncongenial,

•  unlovely,

•  unpleasant,

•  unpleasing,

•  unsavory,

•  unwelcome,

•  wicked,

•  yucky

•  Antonyms : 

•  agreeable,

•  congenial,

•  good,

•  grateful,

•  gratifying,

•  nice,

•  palatable,

•  pleasant,

•  pleasing,

•  pleasurable,

•  satisfying,

•  welcome