Lacking impediments or obstacles, unhindered, as in The negotiations went smooth as silk. This simile alludes to the slippery quality of silk. [ c. 1900 ]
adjective 1. (of firearms) having a smooth, bore; not rifled. noun 2. a smoothbore gun. noun 1. (modifier) (of a firearm) having an unrifled bore: a smoothbore musket 2. such a firearm
noun 1. a symbol (‘) used in the writing of Greek to indicate that the initial vowel over which it is placed is unaspirated. smooth breathing noun 1. (in Greek) the sign (᾿) placed over an initial vowel, indicating that (in ancient Greek) it was not pronounced with an h Compare rough breathing
noun 1. a breed of short-haired collie with a smooth, thick coat.
- Smooth diet
smooth diet n. A diet containing little roughage.