\\\"an exhaustive study\\\"
\\\"made a thorough search\\\"
\\\"thoroughgoing research\\\"

\\\"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\\\"