Definition of perfect adjective from the Oxford Advanced American Dictionary



1 having everything that is necessary; complete and without faults or weaknessesin perfect conditiona perfect set of teethWell I'm sorry—but nobody's perfect (= used when someone has criticized you).2 completely correct; exact and accurateShe speaks perfect English.a perfect copy/fit/matchWhat perfect timing! see also letter-perfect3 the best of its kinda perfect example of the painter's early stylethe perfect crime (= one in which the criminal is never discovered)4 excellent; very goodThe weather was perfect.5 perfect for someone/something exactly right for someone or something synonym idealIt was a perfect day for a picnic.She's the perfect candidate for the job.“Will 2:30 be OK for you?” “Yes, that will be perfect.”6 [only before noun] total; completeI don't know him—he's a perfect stranger.7 (grammar) connected with the form of a verb that consists of part of the verb have with the past participle of the main verb, used to express actions completed by the present or a particular point in the past or future“I have eaten” is the present perfect tense of the verb “to eat,” “I had eaten” is the past perfect, and “I will have eaten” is the future perfect. see also future perfect, past perfect, present perfectIDIOM

in an ideal/a perfect world

used to say that something is what you would like to happen or what should happen, but you know it cannot
In an ideal world we would be recycling and reusing an ideal perfect worldin an a perfect world
Usage noteUsage note: excellentoutstanding perfect superbThese words all describe something that is extremely good.excellent extremely good. note Excellent is used especially about standards of service or of something that someone has worked to produce: The rooms are excellent value at $20 a night. He speaks excellent English.note Excellent is also used to show that you are very pleased about something or that you approve of something: You can all come? Excellent!outstanding extremely good. note Outstanding is used especially about how well someone does something or how good someone is at something: an outstanding achievement She's an outstanding dancer.perfect extremely good. note Perfect is used especially about conditions or how suitable something is for a purpose: Conditions were perfect for walking. She came up with the perfect excuse.superb (formal) extremely good or impressive: The facilities at the hotel are superb.patternsa(n) excellent/outstanding/perfect/superb job/performancea(n) excellent/outstanding/superb achievementabsolutely excellent/outstanding/perfect/superb