Open English Wordnet

(a)perfectbeing complete of its kind and without defect or blemish“a perfect circle”, “a perfect reproduction”, “perfect happiness”, “perfect manners”, “a perfect specimen”, “a perfect day”

(s)arrant, complete, consummate, double-dyed, everlasting, gross, perfect, pure, sodding, stark, staring, thorough, thoroughgoing, utter, unadulteratedwithout qualification; used informally as (often pejorative) intensifiers“an arrant fool”, “a complete coward”, “a consummate fool”, “a double-dyed villain”, “gross negligence”, “a perfect idiot”, “pure folly”, “what a sodding mess”, “stark staring mad”, “a thorough nuisance”, “a thoroughgoing villain”, “utter nonsense”, “the unadulterated truth”