Difference between Unfriendly and Harsh

UNFRIENDLY vs HARSH: ADJECTIVE

Extremely unkind or cruel
Unpleasantly stern
Disagreeable to the senses
Sharply disagreeable; rigorous
Severe
Disagreeable to one of the senses, as.
Used of circumstances (especially weather) that cause suffering
Unkind or cruel or uncivil
Of textures that are rough to the touch or substances consisting of relatively large particles
Severe or cruel.
Unpleasantly rough to the touch or other senses.
Having violent contrasts of color, or of light and shade; lacking in harmony.
Unpleasant and repulsive to the sensibilities; austere; crabbed; morose; abusive; abusive; severe; rough.
Disagreeable to the ear.
Disagreeable to the touch.
Rough; disagreeable; grating.
Expressing displeasure or disapproval.
Disagreeable to the mind or feelings.
Severe, cruel, or exacting.
Unpleasant, uncomfortable, or hostile to survival.
Unpleasantly coarse and rough to the touch.
Disagreeable to the sense of sight.
Disagreeable to the sense of hearing.
Disagreeable to the taste.

Repugnant to the mind or the sensibilities; mentally or morally forbidding; hard to bear, endure, resolve upon, etc.
Austere in character or severe in action; stern; hard; unkind.
Synonyms and Severe, Rigorous, etc. (see austere); acrimonious, ill-natured, ill-tempered, uncivil, ungracious, churlish, brutal.
Rough to the touch or to any of the senses; sharp or sour to the taste, discordant to the ear, inharmonious to the eye, etc.; grating; rasping; acrid; irritating: as, a harsh surface; harsh fruit; a harsh voice; a harsk combination of colors.
To sound harshly; crack.
Hard or severe in effect; of such a nature as to be repellent from any physical point of view.
Unpleasantly rough or jarring to the senses
Sharply disagreeable
Rigorous

Unfavorable, Harsh, Antagonistic, Friendly, Uncordial, Beetle browed, Scowling, Cool, Chilly, Unneighbourly, Uncongenial, Inimical, Unneighborly, Inhospitable, Hostile

Severe, Lenient, Bitter, Tough, Unforgiving, Rigorous, Hard, Disagreeable, Heavy, Abrasive, Unpleasant, Rough, Unkind, Cruel, Brutal

Unfavorable, Harsh, Antagonistic, Friendly, Uncordial, Beetle browed, Scowling, Cool, Chilly, Unneighbourly, Uncongenial, Inimical, Unneighborly, Inhospitable, Hostile

Severe, Lenient, Bitter, Tough, Unforgiving, Rigorous, Hard, Disagreeable, Heavy, Abrasive, Unpleasant, Rough, Unkind, Cruel, Brutal

Enemy everywhere, unfriendly friend especially at your workplace.
However, worse above all: arrogant and unfriendly personnel.
Cramped seats, old aircraft and unfriendly flight attendants.
Hostage, nameless, overload, underestimate, amoral, unfriendly, gooseberry, carefulness.
Icelandair personnel at the airport were extremely unfriendly.
Hotel staff are completely unfriendly and suspicious looking.
It was a very unfriendly environment as well.
We did not meet one unfriendly staff member!
Auckland city depot was very curt and unfriendly.
Unfriendly power, unfriendly zone, blocks line of sight for everyone, blah blah blah.

In general gutless amps with harsh, cold sound.
Harsh is a staff reporter at Mercom India.
As a Federal crime the punishments are harsh.
Mema speak a harsh word about another person.
The weather there is very harsh and cold.
Violations of these laws typically carry harsh penalties.
If harsh words are used, model how to change the harsh words to gentle words.
The Council agreed on putting harsh demands on Serbia but could not reach consensus on how harsh.
Harsh Lesson Harsh Lesson is a quest available in The Elder Scrolls Online.
Of course CDNIM has the infamous harsh opening which I did not find all that harsh.