In a perfect manner or to a perfect degree.(adverb)
To a complete or full degree or extent; wholly: The diners were perfectly satisfied with the meal. See Usage Note at perfect.(adverb)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "perfectly" in a sentence
"There's also the danger of idealizing a platonic ideal game as being "perfectly balanced" when it's actually been suggested that a game, especially an MMO may not want to be *perfectly* balanced at all, as you might reduce all strategies to being equally effective and therefore uninteresting."
""Look here," cried Lashmar, standing before her with his hands in his pockets, "you know perfectly well -- _perfectly well_ -- that, if I accept this offer, you'll think the worse of me.""
"That is perfectly understood, Your Excellency, _perfectly_ understood. ""