In one's birthday suit and In the altogether

In one's birthday suit

In one's birthday suit adjective - As naked as at birth.

In the altogether and in one's birthday suit are semantically related. In some cases you can use "In the altogether" instead an adjective phrase "In one's birthday suit".

In the altogether

In the altogether adjective - (used informally) completely unclothed.

In one's birthday suit and in the altogether are semantically related. You can use "In one's birthday suit" instead an adjective phrase "In the altogether".
Cite this Source
In the altogether and In one's birthday suit. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/related/in_one_s_birthday_suit/in_the_altogether
In one's birthday suit & In the altogether. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/related/in_one_s_birthday_suit/in_the_altogether>.
In the altogether or In one's birthday suit. 2016. Accessed July 31, 2026. https://thesaurus.plus/related/in_one_s_birthday_suit/in_the_altogether.