Antonyms of adj duck-billed

1 sense of duck-billed

Sense 1
duckbill, duck-billed -- (having a beak resembling that of a duck; "a duck-billed dinosaur")

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

Similarity of adj duck-billed

1 sense of duck-billed

Sense 1
duckbill, duck-billed -- (having a beak resembling that of a duck; "a duck-billed dinosaur")
       => beaked (vs. beakless) -- (having or resembling a beak)