Antonyms of adj thick-billed

1 sense of thick-billed

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

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

Similarity of adj thick-billed

1 sense of thick-billed

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