"an exhaustive study" "made a thorough search" "thoroughgoing research"
without 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 thoroughgoing villain" "utter nonsense" "the unadulterated truth"