perfectly

The word “perfectly” means in a flawless or ideal way. In plain terms, either "in a flawless way" or, more loosely, "completely" for emphasis.

“Perfectly” is pronounced PUR-fihk-lee (/ˈpɝ.fɪk(t).li/ in IPA).

Here is “perfectly” used in a sentence: “The dress fit her perfectly.”

“Perfectly” is an adverb.

“Perfectly” is a fairly common word in modern English, usually learned at around the A2 level.

“Perfectly” has 2 distinct senses listed in this dictionary. The most common is: in a flawless or ideal way.

"Perfectly" has two everyday uses. One means flawlessly — done without any fault, as in "she sang it perfectly." The other is an intensifier meaning completely or thoroughly, as in "that's perfectly normal" or "I'm perfectly happy." Only the first sense is about perfection; the second simply strengthens the word after it.

When "perfectly" means flawlessly, it differs sharply from "completely." But as an intensifier — "perfectly clear," "completely clear" — the two nearly match, both meaning fully or entirely. So they overlap only in that emphasising sense; when perfection or faultlessness is meant, "completely" cannot replace it.

"The parts fitted together perfectly" shows the flawless sense — with no gap or fault at all. So does "she performed the routine perfectly," meaning without a single mistake. In each case, "perfectly" describes something done to an ideal standard, exactly as it should be, with nothing to correct.