Ungrooved is a synonym of grooveless.
As adjectives the difference between ungrooved and grooveless
is that ungrooved is without a groove or grooves while grooveless is without a groove or grooves.
ungrooved
English
Adjective
(-)
Without a groove or grooves.
Synonyms
* grooveless grooveless
English
Adjective
(-)
Without a groove or grooves.
Synonyms
* ungrooved