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

1 sense of smoothbore

Sense 1
smoothbore -- (a firearm that has no rifling)
       => firearm, piece, small-arm -- (a portable gun; "he wore his firearm in a shoulder holster")

Similarity of adj smoothbore

1 sense of smoothbore

Sense 1
unrifled (vs. rifled), smoothbore -- (of a firearm; not having rifling or internal spiral grooves inside the barrel)