poseur

As an adjective pompous

is affectedly grand, solemn or self-important.

As a noun poseur is

one who affects some behaviour, style, attitude or other condition, often to impress or influence others.

As a noun poseur

is one who affects some behaviour, style, attitude or other condition, often to impress or influence others.

As an adjective histrionics is

.

As a noun poseur

is one who affects some behaviour, style, attitude or other condition, often to impress or influence others.

As an adjective histrionic is

of, or relating to actors or acting.

As nouns the difference between poseur and posture

is that poseur is one who affects some behaviour, style, attitude or other condition, often to impress or influence others while posture is the way a person holds and positions their body.

As a verb posture is

to put one's body into a posture or series of postures, especially hoping that one will be noticed and admired.

As nouns the difference between poseur and actor

is that poseur is one who affects some behaviour, style, attitude or other condition, often to impress or influence others while actor is a person who performs in a theatrical play or film.

As nouns the difference between poseur and charlatan

is that poseur is one who affects some behaviour, style, attitude or other condition, often to impress or influence others while charlatan is a malicious trickster; a fake person, especially one who deceives for personal profit.

Poseur is a related term of pretender.

As nouns the difference between poseur and pretender

is that poseur is one who affects some behaviour, style, attitude or other condition, often to impress or influence others while pretender is a person who professes beliefs and opinions that they do not hold.

Fake is a synonym of poseur.

As nouns the difference between fake and poseur

is that fake is something which is not genuine, or is presented fraudulently or fake can be (nautical) one of the circles or windings of a cable or hawser, as it lies in a coil; a single turn or coil while poseur is one who affects some behaviour, style, attitude or other condition, often to impress or influence others.

As an adjective fake

is not real; false, fraudulent.

As a verb fake

is to cheat; to swindle; to steal; to rob or fake can be (nautical) to coil (a rope, line, or hawser), by winding alternately in opposite directions, in layers usually of zigzag or figure of eight form, to prevent twisting when running out.

Poseur is a related term of humbug.

As nouns the difference between poseur and humbug

is that poseur is one who affects some behaviour, style, attitude or other condition, often to impress or influence others while humbug is a hoax, prank or jest.

As an interjection humbug is

nonsense!.

As a verb humbug is

to play a trick on.