Comparative degree of the adjective "smooth".
Synonyms
more even
more polished
more refined
more level
more seamless
Used chiefly in informal speech as the comparative form of the adverb "smoothly"
Synonyms
more neatly
more softly
more effortlessly
more fluidly
more seamlessly
more evenly
more smoothly
Colloquial/idiomatic use meaning “smoothly”.