Difference between Rude and Impertinent

RUDE vs IMPERTINENT: NOUN

One who interferes in what does not concern him; one who is rude, uncivil, or offensive in behavior; a meddler; an intruder.
An impertinent person.

Vigorous or robust.
Unpleasantly forceful or harsh.
In a natural, raw state.
Crude, unfinished, or made with limited skill.
Undeveloped or uncivilized; primitive.
Ill-mannered, discourteous, or insulting.
(of persons) lacking in refinement or grace
Belonging to an early stage of technical development; characterized by simplicity and (often) crudeness
Lacking civility or good manners
Lacking education or refinement.
Unformed by taste or skill; not nicely finished; not smoothed or polished; -- said especially of material things.
Hearty, vigorous; found particularly in the phrase rude health.
Undeveloped, unskilled, basic.
Tough, robust.
Obscene, pornographic, offensive.
Bad mannered.
Not finished or complete; inelegant; lacking chasteness or elegance; not in good taste; unsatisfactory in mode of treatment; -- said of literature, language, style, and the like.
Barbarous; fierce; bloody; impetuous; -- said of war, conflict, and the like; as, the rude shock of armies.
Violent; tumultuous; boisterous; inclement; harsh; severe; -- said of the weather, of storms, and the like.
Of untaught manners; unpolished; of low rank; uncivil; clownish; ignorant; raw; unskillful; -- said of persons, or of conduct, skill, and the like.
Socially incorrect in behavior
Characterized by roughness; umpolished; raw; lacking delicacy or refinement; coarse.
(used especially of commodities) being unprocessed or manufactured using only simple or minimal processes

Irrelevant (opposite of pertinent)
Insolent, ill-mannered
Trifing; inattentive; frivolous.
Contrary to, or offending against, the rules of propriety or good breeding; guilty of, or prone to, rude, unbecoming, or uncivil words or actions
Not pertinent: : irrelevant.
Exceeding the limits of propriety or good manners; improperly forward or bold.
Not pertinent to the matter under consideration
Improperly forward or bold
Characterized by a lightly pert and exuberant quality

Lacking cultivation, refinement, or elegance; clumsy; uncouth: as, rude verses; rude art.
Rough; crude; unwrought; unfashioned; ill-fashioned; without finish or shapeliness: as, a rude mass of material.
Rudely.
Harsh, inclement, violent, turbulent.
Barbarous; uncivilized; unpolished; ignorant.
Having a fierce or cruel disposition; ferocious; sanguinary; savage; brutal.
Marked by or expressing fierceness or savageness; ferocious, fierce, or cruel in quality.
Mean; humble; little known or regarded; hence, as said of persons, low by birth or position.
Ill-bred; boorish; uncivil; discourteous; impolite.
Marked, by incivility; contrary to the requirements of. courtesy: as, rude conduct; a rude remark.
Rough; tempestuous; stormy: as, a rude gale; rude weather.
Robust; sturdy; rugged; vigorous.
Synonyms Ill-shaped, raw, uncouth, unformed.
7 and Vulgar, loutish, boorish, ill-bred, insolent, surly, churlish, gruff, brusk.

Not pertinent; not pertaining to the matter in hand; not to the point; irrelevant; inapposite; out of place.
Contrary to the rules of propriety or good breeding; uncivil: speaking or acting presumptuously or offensively; pragmatical; meddling: as, impertinent behavior; an impertinent boy.
Synonyms Impertinent, Officious, saucy, impudent, insolent, rude, unmannerly, pert, bold, Impertinent means forward, intrusive, generally from curiosity, but sometimes with undesired advice, etc.; officious means forward to offer and undertake service where it is neither needed nor desired. A busybody may be either impertinent or officious, or both. See impudence.
Negligent of or inattentive to the matter in hand; careless; frivolous.

Ill mannered, Lowbred, Bounderish, Underbred, Early, Natural, Unprocessed, Raw, Crude, Primitive, Unrefined, Unmannered, Uncivil, Unmannerly, Impolite

Snotty, Rude, Insolent, Forward, Overbold, Fresh, Smart, Spirited, Immaterial, Saucy, Pert, Extraneous, Irrelevant, Irreverent, Impudent

Lowbred, Ill mannered, Ill bred, Bounderish, Early, Natural, Unprocessed, Raw, Crude, Primitive, Unrefined, Unmannered, Uncivil, Unmannerly, Impolite

Snotty, Rude, Insolent, Forward, Overbold, Fresh, Smart, Spirited, Immaterial, Saucy, Pert, Extraneous, Irrelevant, Irreverent, Impudent

Some of the comments on here are rude.
During this time her tone became increasingly rude.
They may be rude, anxious, or downright aggressive.
Horrible Experience, other kids were rude and privileged.
For those of you saying its rude its not rude it happens especially if you are a single parent.
The workers were rude on deliver and rude on the times we did carry out!
It may seem rude, but, you need a final head count and if they have not replied, then they are actually the rude ones!
If some customer was rude, you gained nothing by being rude in return and were likely to put off anyone else within earshot.
Telling people they are rude is generally not very useful, as well as being rude itself.
Catcalling and rude remarks and rude noises are a constant at women.

Speech as impertinent, when he yet proceeded further, and faid: Hickford.
Some of the greatest wines are borderline mad and downright impertinent.
Well, fair impertinent, your whisper is not lost, we hear you.
Not adhering to these formalities, you risk sounding rude and impertinent.
In this context only, rude and impertinent behavior is tolerated.
Scrappier impertinent bloodstain memoir adaptive iterate disarming apparent duellers timeconsuming.
You were not sent with any such impertinent message.
Impertinent Questions As LGBT people what is our goal?.
Kings Proclamation from Authority I, evadeanswering Impertinent questions.
Radiant, alluring and impertinent, it dazzles with presence.