insolent

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective insolent is

insulting in manner or words.

As adjectives the difference between naughty and insolent

is that naughty is evil, wicked, morally reprehensible while insolent is insulting in manner or words.

As a noun contempt

is the state of contemning; the feeling or attitude of regarding someone or something as inferior, base, or worthless; scorn, disdain.

As an adjective insolent is

insulting in manner or words.

As adjectives the difference between insolent and beggarlike

is that insolent is insulting in manner or words while beggarlike is resembling a beggar or some aspect of one: poor, wheedling, insolent, etc.