Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun asteroid

1 sense of asteroid

Sense 1
asteroid -- (any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter))
       => minor planet, planetoid -- (any of numerous small celestial bodies that move around the sun)

Antonyms of adj asteroid

1 sense of asteroid

Sense 1
asteroid, star-shaped -- (shaped like a star)

INDIRECT (VIA angular) -> rounded -- (curving and somewhat round in shape rather than jagged; "low rounded hills"; "rounded shoulders")

Similarity of adj asteroid

1 sense of asteroid

Sense 1
asteroid, star-shaped -- (shaped like a star)
       => angular (vs. rounded), angulate -- (having angles or an angular shape)