in the altogether vs bare-ass

in the altogether and bare-ass both are adjectives.

Word	Noun	Adjective	Verb	Adverb
in the altogether	No	Yes	No	No
bare-ass	No	Yes	No	No

As adjectives, in the altogether and bare-ass are synonyms defined as:

Other synonyms of in the altogether include bare-assed, in the buff, in the raw, naked as a jaybird, peeled, raw, stark naked.

in the altogether (adjective)	bare-ass (adjective)
(used informally) completely unclothed	(used informally) completely unclothed