say it: KLEEN-lee
cleanly is an adverb and adjective meaning "smoothly and without difficulty; precisely and deftly". It carries 3 recorded senses.
smoothly and without difficulty; precisely and deftly
“the gymnast landed flawlessly”
“she played the piano accompaniment cleanly”
“he bounced it cleanly off the wall”
in a manner that minimizes dirt and pollution
“the motor burns cleanly”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for cleanly come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.