Opposite of stupid

Opposite of stupidity

Opposite of stupidly

Opposite of stupify

Opposite of sturdy

Opposite of stutter

Opposite of stuttering

Opposite of stylish

Opposite of suave

Opposite of suavity

Opposite of subaltern

Opposite of subdivided

Opposite of subdue

Opposite of subdued

Opposite of subject

Opposite of subject-a

Opposite of subjection

Opposite of subjective

Opposite of subjoin

Opposite of subjoined

Opposite of subjugate

Opposite of subjugation

Opposite of sublimate

Opposite of sublimation

Opposite of sublime

Opposite of sublunary

Opposite of submerge

Opposite of submission

Opposite of submissive

Opposite of submissiveness

Opposite of submit

Opposite of subordinate

Opposite of subordinately

Opposite of subordination

Opposite of subscribe

Opposite of subsequence

Opposite of subsequent

Opposite of subsequently

Opposite of subserve

Opposite of subservience