Unshowy is a related term of unostentatious.
As adjectives the difference between unshowy and unostentatious
is that unshowy is not showy; plain or unassuming while unostentatious is not ostentatious; simple; unpresuming.
unshowy
English
Adjective
(
head)
Not showy; plain or unassuming
- He has a confident, unshowy style.