flippant

Flippant is a synonym of bumptious.

As adjectives the difference between flippant and bumptious

is that flippant is (archaic) glib; speaking with ease and rapidity while bumptious is obtrusively pushy; self-assertive to a pretentious extreme.

Brash is a related term of flippant.

As adjectives the difference between brash and flippant

is that brash is impetuous or rash or brash can be (us|colloquial|dated) brittle, as wood or vegetables while flippant is (archaic) glib; speaking with ease and rapidity.

As a noun brash

is leaf litter of small leaves and little twigs as found under a hedge.

As an adjective flippant

is (archaic) glib; speaking with ease and rapidity.

As a verb reverse is

.

As an adjective flippant

is (archaic) glib; speaking with ease and rapidity.

As a noun hard is

stove, heater; an enclosed space in which fuel (usually wood) is burned to provide heating, usually for cooking.

As adjectives the difference between flippant and ironical

is that flippant is (archaic) glib; speaking with ease and rapidity while ironical is characterized by or constituting (any kind of) irony.

As adjectives the difference between flippant and irony

is that flippant is glib; speaking with ease and rapidity while irony is of or pertaining to the metal iron.

As a noun irony is

a statement that, when taken in context, may actually mean something different from, or the opposite of, what is written literally; the use of words expressing something other than their literal intention, often in a humorous context.

As an adjective flippant is

(archaic) glib; speaking with ease and rapidity.

As adjectives the difference between reckless and flippant

is that reckless is careless or heedless; headstrong or rash while flippant is glib; speaking with ease and rapidity.

As adjectives the difference between cheeky and flippant

is that cheeky is impudent; impertinent; impertinently bold, often in a way that is regarded as endearing or amusing while flippant is glib; speaking with ease and rapidity.

As an adjective flippant is

(archaic) glib; speaking with ease and rapidity.