As adjectives the difference between atypical and slow
is that
atypical is not conforming to the normal type while
slow is taking a long time to move or go a short distance, or to perform an action; not quick in motion; proceeding at a low speed.
As nouns the difference between atypical and slow
is that
atypical is (pharmacy) an atypical antipsychotic while
slow is someone who is slow; a sluggard.
As a verb slow is
to make (something) run, move, etc less quickly; to reduce the speed of.
As an adverb slow is
slowly.