unostentatious
1. [ adjective ] not ostentatious
Synonyms: unpretending unpretentious
Examples:

"his unostentatious office" "unostentatious elegance"

Related terms: ostentatious quiet
2. [ adjective ] exhibiting restrained good taste
Synonyms: unpretentious understated
Examples:

"the room is pleasant and understated"

Related terms: tasteful
3. [ adjective ] free from ostentation or pretension
Synonyms: restrained modest
Examples:

"the restrained elegance of the room"

Related terms: discreet