double-dyed

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”