nostalgic

As a verb mortified

is (mortify).

As an adjective nostalgic is

nostalgic.

As adjectives the difference between familiar and nostalgic

is that familiar is familial while nostalgic is nostalgic.

As adjectives the difference between nostalgic and undefined

is that nostalgic is nostalgic while undefined is lacking a definition or value.

As adjectives the difference between nostalgic and unhappy

is that nostalgic is of, having, or relating to nostalgia while unhappy is not happy; sad.

As a noun nostalgic

is a person who displays nostalgia for something.

As adjectives the difference between nostalgic and solemn

is that nostalgic is of, having, or relating to nostalgia while solemn is deeply serious and somber.

As a noun nostalgic

is a person who displays nostalgia for something.

As nouns the difference between nostalgic and sulk

is that nostalgic is a person who displays nostalgia for something while sulk is a state of sulking.

As an adjective nostalgic

is of, having, or relating to nostalgia.

As a verb sulk is

to express ill humor or offense by remaining sullenly silent or withdrawn.

As nouns the difference between nostalgic and history

is that nostalgic is a person who displays nostalgia for something while history is the aggregate of past events.

As an adjective nostalgic

is of, having, or relating to nostalgia.

As a verb history is

to narrate or record.

As adjectives the difference between retro and nostalgic

is that retro is of, or relating to, the past, past times, or the way things were while nostalgic is of, having, or relating to nostalgia.

As nouns the difference between retro and nostalgic

is that retro is something, such as a fashion, from the past; a retro trend while nostalgic is a person who displays nostalgia for something.

As adjectives the difference between inchoate and nostalgic

is that inchoate is recently started but not fully formed yet; just begun; only elementary or immature while nostalgic is of, having, or relating to nostalgia.

As nouns the difference between inchoate and nostalgic

is that inchoate is a beginning, an immature start while nostalgic is a person who displays nostalgia for something.

As a verb inchoate

is to begin or start something.

As nouns the difference between reminiscence and nostalgic

is that reminiscence is an act of remembering long-past experiences, often fondly while nostalgic is a person who displays nostalgia for something.

As an adjective nostalgic is

of, having, or relating to nostalgia.