Glad is a related term of sportive.

As a verb glad

is .

As an adjective sportive is

gay; frolicsome; merry.

As a noun sportive is

(cycling) cyclosportive.

Dilatory is a synonym of backward.

As adjectives the difference between dilatory and backward

is that dilatory is intentionally delaying (someone or something), intended to cause delay, gain time, or defer decision while backward is (of motion) pertaining to the direction towards the back.

As an adverb backward is

(of motion) in the direction towards the back; backwards.

As a noun backward is

the state behind or past.

Restricted is a related term of solid.

As a verb restricted

is (restrict).

As an adjective restricted

is limited within bounds.

As an acronym solid is

(programming|object-oriented).

Whole is a related term of everyone.

As an adjective whole

is entire.

As an adverb whole

is (colloquial) in entirety; entirely; wholly.

As a noun whole

is something complete, without any parts missing.

As a pronoun everyone is

every person.

Damning is a related term of vitriolic.

As adjectives the difference between damning and vitriolic

is that damning is condemning while vitriolic is of, derived from, or similar to a vitriol.

As a verb damning

is .

As a noun damning

is a condemnation.

Inventor is a related term of begetter.

As nouns the difference between inventor and begetter

is that inventor is one who invents, either as a hobby or as an occupation while begetter is a procreator; one who begets.

Irritated is a related term of choleric.

As adjectives the difference between irritated and choleric

is that irritated is experiencing a feeling of irritation while choleric is easily becoming angry.

As a verb irritated

is (irritate).

In transitive terms the difference between complicate and puzzle

is that complicate is to expose involvement in a convoluted matter while puzzle is to perplex (someone).

As an adjective complicate

is intertwined.

As a noun puzzle is

anything that is difficult to understand or make sense of.

Chagrined is a related term of pitiful.

As a verb chagrined

is (chagrin).

As an adjective pitiful is

feeling pity; merciful.

Realm is a related term of republic.

As nouns the difference between realm and republic

is that realm is an abstract sphere of influence, real or imagined while republic is a state where sovereignty rests with the people or their representatives, rather than with a monarch or emperor; a country with no monarchy.