Antonyms of adj round-bottom

1 sense of round-bottom

Sense 1
round-bottomed, round-bottom -- (having a rounded bottom; "round-bottom flasks")

INDIRECT (VIA bottomed) -> bottomless -- (having no bottom; "bottomless pajamas consisting simply of a long top opening down the front")

Similarity of adj round-bottom

1 sense of round-bottom

Sense 1
round-bottomed, round-bottom -- (having a rounded bottom; "round-bottom flasks")
       => bottomed (vs. bottomless) -- (having a bottom of a specified character)