Antonyms of adj zesty

2 senses of zesty

Sense 1
piquant, savory, savoury, spicy, zesty -- (having an agreeably pungent taste)

INDIRECT (VIA tasty) -> tasteless -- (lacking flavor)

Sense 2
zestful, yeasty, zesty, barmy -- (marked by spirited enjoyment)

INDIRECT (VIA spirited) -> spiritless -- (lacking ardor or vigor or energy; "a spiritless reply to criticism")

Similarity of adj zesty

2 senses of zesty

Sense 1
piquant, savory, savoury, spicy, zesty -- (having an agreeably pungent taste)
       => tasty (vs. tasteless) -- (pleasing to the sense of taste; "a tasty morsel")

Sense 2
zestful, yeasty, zesty, barmy -- (marked by spirited enjoyment)
       => spirited (vs. spiritless) -- (displaying animation, vigor, or liveliness)