As an adjective fifteenth

is the ordinal form of the number fifteen.

As a noun fifteenth

is the person or thing in the fifteenth position.

As an adverb fifteenthly is

in the fifteenth place; fifteenth in a row.

As a numeral sixteenth

is (ordinal) the ordinal form of the number sixteen.

As a noun sixteenth

is (fractional) one of sixteen equal parts of a whole.

As an adverb sixteenthly is

in the sixteenth place; sixteenth in a row.

Unembellished is a synonym of unadorned.

As adjectives the difference between unadorned and unembellished

is that unadorned is having no additional decoration or embellishment; plain and simple while unembellished is plain, unadorned, or simple.

As adjectives the difference between simple and unembellished

is that simple is uncomplicated; taken by itself, with nothing added while unembellished is plain, unadorned, or simple.

As a noun simple

is (medicine) a preparation made from one plant, as opposed to something made from more than one plant.

As a verb simple

is (transitive|intransitive|archaic) to gather simples, ie, medicinal herbs.

Bare is a synonym of unembellished.

As a proper noun bare

is an extinct language of venezuela.

As an adjective unembellished is

plain, unadorned, or simple.

Unembellished is a synonym of modest.

As adjectives the difference between modest and unembellished

is that modest is not bragging or boasting about oneself or one's achievements, unpretentious, humble while unembellished is plain, unadorned, or simple.

As nouns the difference between quartermaster and quartermistress

is that quartermaster is an officer whose duty is to provide quarters, provisions, storage, clothing, fuel, stationery, and transportation for a regiment or other body of troops, and superintend the supplies while quartermistress is a female quartermaster.

As an adjective zany

is unusual and bizarre in a funny, comical way; outlandish; clownish.

As a noun zany

is a fool or clown. Especially one whose business on the stage was to imitate foolishly the actions of the principal clown.

As an adverb zanily is

in a zany manner.

As adjectives the difference between oak and quercivorous

is that oak is while quercivorous is feeding on oak leaves.

As a noun leaves

is plural of lang=en.

As a verb leaves

is third-person singular of leave.

As an adjective quercivorous is

feeding on oak leaves.