Is stupidest grammatically correct?

The same rules apply to creating superlative adjectives. The only difference is that they take the suffix -est or the determiner most. As with stupider, stupidest is perfectly correct and listed as standard in dictionaries.

Is stupider a word Reddit?

By what people actually use, more stupid and stupider are both valid comparative forms of stupid, and there is even an emphatic comparative form more stupider. So by a descriptive approach to language, then, yes, stupider is really a word

Is stupidly a real word?

Meaning of stupidly in English in a way that is silly or unwise, or shows little intelligence: Sorry, I stupidly forgot to bring my copy of the report – could I look at yours? I stared at them stupidly.

What part of speech is stupidest?

adjectivestupidcomparativestupidersuperlativestupidest

Is Dumber grammatically correct?

adjectivestupidcomparativestupidersuperlativestupidest