Antonyms of adj bicephalous

1 sense of bicephalous

Sense 1
bicephalous -- (having two heads)

INDIRECT (VIA headed) -> headless -- (not having a head or formed without a head ; "the headless horseman"; "brads are headless nails")

Similarity of adj bicephalous

1 sense of bicephalous

Sense 1
bicephalous -- (having two heads)
       => headed (vs. headless) -- (having a head of a specified kind or anything that serves as a head; often used in combination; "headed bolts"; "three-headed Cerberus"; "a cool-headed fighter pilot")