stupidest
adj. A2 Elementary US //ˈstupɪdəst// UK //stjˈuːpɪdəst// stu·pid·est
adj. the most silly or not smart. You use this to describe the person or thing with the lowest intelligence in a group.
adj. the superlative form of 'stupid'; describes the person, action, or idea possessing the least amount of intelligence or common sense in a given set.
That was the stupidest mistake I have ever made.
The team lost the game because of the stupidest error in the final seconds of play.
Historians often debate which policy was the stupidest, but most agree that this particular law caused the most avoidable damage to the local economy.
Usage
Superlative adjective; typically preceded by the definite article 'the'.
Pitfall
the most stupidestthe stupidestDouble superlatives are incorrect; 'stupidest' already includes the 'most' meaning.