unostentatious

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.

Modest is a synonym of unostentatious.

As adjectives the difference between modest and unostentatious

is that modest is not bragging or boasting about oneself or one's achievements, unpretentious, humble while unostentatious is not ostentatious; simple; unpresuming.

Plain is a related term of unostentatious.

As adjectives the difference between plain and unostentatious

is that plain is while unostentatious is not ostentatious; simple; unpresuming.

As an adverb plain

is (colloquial) simply.

As a noun plain

is (rare|poetic) a lamentation or plain can be an expanse of land with relatively low relief.

As a verb plain

is to lament, bewail or plain can be (obsolete|transitive) to plane or level; to make plain or even on the surface.

Limited is a related term of unostentatious.

As adjectives the difference between limited and unostentatious

is that limited is with certain (often specified) limits placed upon it while unostentatious is not ostentatious; simple; unpresuming.

As a verb limited

is (limit).

Unpretentious is a related term of unostentatious.

As adjectives the difference between unpretentious and unostentatious

is that unpretentious is simple, humble, not pretentious, plain while unostentatious is not ostentatious; simple; unpresuming.

Unostentatious is a related term of quiet.

As adjectives the difference between unostentatious and quiet

is that unostentatious is not ostentatious; simple; unpresuming while quiet is with little or no sound; free from of disturbing noise.

As a verb quiet is

to become quiet, silent, still, tranquil, calm.

As a noun quiet is

the absence of sound; quietness.

As an adjective unostentatious

is not ostentatious; simple; unpresuming.

As an adverb unostentatiously is

in an unostentatious manner.