tasteless

Synonyms: big zero blah bland boring distasteful dull flat flavorless insipid mild nowhere pabulum plain plain vanilla savorless stale tame thin unappetizing uninspired uninteresting unpalatable unpleasurable unsavory unseasoned vanilla vapid watered-down watery weak without spice zero

Antonyms: appetizing flavorful savory tasty

Synonyms: artificial barbaric barbarous coarse crass crude flashy foolish garish gaudy graceless hideous impolite improper indecorous indelicate indiscreet inelegant loud low low-down low-down-and-dirty makeshift off-color ornate ostentatious outlandish pretentious raunchy rough rude showy stupid tacky tactless tawdry trivial uncouth unlovely unpolished unrefined unseemly unsightly useless wild

Antonyms: couth moral nice tasteful