off-the-wall vs outre

off-the-wall and outre both are adjectives.

Word	Noun	Adjective	Verb	Adverb
off-the-wall	No	Yes	No	No
outre	No	Yes	No	No

As adjectives, off-the-wall and outre are synonyms defined as:

off-the-wall and outre: conspicuously or grossly unconventional or unusual

Other synonyms of off-the-wall include bizarre, eccentric, flakey, flaky, freakish, freaky, gonzo, outlandish.

off-the-wall (adjective)	outre (adjective)
conspicuously or grossly unconventional or unusual	conspicuously or grossly unconventional or unusual