Word parts perfect + -ly Pronunciation (UK) IPA (key): /ˈpɜːfɪk(t)li/ (US) IPA (key): /ˈpɝfɪk(t)li/ Audio (US)(file) Hyphenation: per‧fect‧ly Adverb Positive perfectly Comparative more perfectly Superlative most perfectly If something is done perfectly, it is done without mistake. The car is perfectly aligned in the lot. If something is perfectly good, normal, clear, etc., it's entirely so. The meaning is perfectly clear. Nobody could misunderstand. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads