Having no additional decoration or embellishment; plain and simple

simple past tense and past participle of unadorn

Absence of adornment.

Third-person singular simple present indicative form of unadorn

present participle of unadorn

To add a feature or embellishment that makes something uglier; uglify. / To remove the adornments from.

Not adornable.

The state or quality of being unadorned.

Without adornment.