Unadorned means plain, with no decoration at all. An unadorned room, unadorned prose, unadorned truth.
It is usually praise, and the praise is for restraint rather than poverty — an unadorned style is a choice. The unadorned truth means the truth without softening. Note adorn beneath it, from a Latin verb meaning to fit out.
1adjectiveunadornedPlain, with no decoration at all.
“The walls of the monk's cell were bare and unadorned.”
unadorned is a quality of plainness.
From un- + adorned.
Etymology from Wiktionary, CC BY-SA