unembarrassed
— Adjective
– English
~ not embarrassed; "a tinseled charm and unabashed sentimentality"- Jerome Stone; "an unembarrassed greeting as if nothing untoward had happened"
unembellished
— Adjective
– English
~ lacking embellishment or ornamentation; "a plain hair style"; "unembellished white walls"; "functional architecture featuring stark unornamented concrete"