Antonyms of adj straight-billed

1 sense of straight-billed

Sense 1
straight-billed -- (having a straight beak)

INDIRECT (VIA beaked) -> beakless -- (not having a beak or bill)

Similarity of adj straight-billed

1 sense of straight-billed

Sense 1
straight-billed -- (having a straight beak)
       => beaked (vs. beakless) -- (having or resembling a beak)