Inner Beauty has various nouns and adjectives of definition

Inner beauty can shine through ugly qualities too, such as insecurity, self loathing, recklessness, naivety, low self-esteem, ignorance etc, the duality can be fascinating

Trustworthy,
Loyal,
Helpful,
Friendly,
Courteous,
Kind,
Obedient,
Cheerful,
Thrifty,
Brave,
Clean,
and Reverent.