Dictionary

spaced out en · ADJ

(informal) In a confused or oblivious mental state, especially as a result of drug-taking.
Positioned at regular intervals with a specified space between them.

Spelling	Features	Labels	Source
more spaced out	Degree=Cmp		lexicographic
most spaced out	Degree=Sup		lexicographic

spread out (positioned at regular intervals) · stunned (in a confused mental state) · thin · dazed (in a confused mental state)

(form-of, participle, past) simple past and past participle of space out.
form of space out