dignified

adjectives

having or expressing dignity; especially formality or stateliness in bearing or appearance
"her dignified demeanor"; "the director of the school was a dignified white-haired gentleman"
antonym
is similar to
refined or imposing in manner or appearance; befitting a royal court
"a courtly gentleman"
is similar to
used of a person's appearance or behavior; befitting an eminent person
"his distinguished bearing"; "the monarch's imposing presence"; "she reigned in magisterial beauty"
see also
serenely self-possessed and free from agitation especially in times of stress
"the performer seemed completely composed as she stepped onto the stage"; "I felt calm and more composed than I had in a long time"
see also
refined and tasteful in appearance or behavior or style
"elegant handwriting"; "an elegant dark suit"; "she was elegant to her fingertips"; "small churches with elegant white spires"; "an elegant mathematical solution--simple and precise and lucid"
having or showing self-esteem