"stuffiest" in the adjective sense
1. airless, close, stuffy, unaired
lacking fresh air
"a dusty airless attic"
"the dreadfully close atmosphere"
"hot and stuffy and the air was blue with smoke"
2. stodgy, stuffy
excessively conventional and unimaginative and hence dull
"why is the middle class so stodgy, so utterly without a sense of humor?"
"a stodgy dinner party"
3. stuffy
affected with a sensation of stoppage or obstruction
"a stuffy feeling in my chest"
Source: WordNet® (An amazing lexical database of English)
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