Antonyms of adj nectarous

1 sense of nectarous

Sense 1
ambrosial, ambrosian, nectarous -- (extremely pleasing to the taste; sweet and fragrant; "a nectarous drink"; "ambrosial food")

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

Similarity of adj nectarous

1 sense of nectarous

Sense 1
ambrosial, ambrosian, nectarous -- (extremely pleasing to the taste; sweet and fragrant; "a nectarous drink"; "ambrosial food")
       => tasty (vs. tasteless) -- (pleasing to the sense of taste; "a tasty morsel")