Nouns

(n)reflexive pronoun, reflexivea personal pronoun compounded with -self to show the agent's action affects the agent

Adjectives

(s)automatic, reflex, reflexivewithout volition or conscious control“the automatic shrinking of the pupils of the eye in strong light”, “a reflex knee jerk”, “sneezing is reflexive”
(s)reflexive, self-referentreferring back to itself