Difference between Inappropriate and Unfriendly

INAPPROPRIATE vs UNFRIENDLY: ADJECTIVE

Not suitable for a particular occasion etc
Not in keeping with what is correct or proper
Unsuitable or improper.
Not instrument (to); not appropriate; unbecoming; unsuitable; not specially fitted; -- followed by to or for.
Not appropriate; not suitable for the situation, time, and/or place.
Not conforming with accepted standards of propriety or taste; undesirable

Not appropriate or pertinent; not proper; unsuitable: as, inappropriate remarks.

Unethical, Abusive, Unacceptable, Indecent, Appropriate, Objectionable, Out or keeping, Unbefitting, Wrong, Incompatible, Incongruous, Incorrect, Unfitting, Unsuitable, Improper

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

Unethical, Abusive, Unacceptable, Indecent, Appropriate, Objectionable, Out or keeping, Unbefitting, Wrong, Incompatible, Incongruous, Incorrect, Unfitting, Unsuitable, Improper

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

Therefore, the court found, front pay was inappropriate.
These gatherings are clearly inappropriate for our village.
Or, they take their clothes off at inappropriate times or places, or they dress inappropriate for the weather.
The goal is to reduce inappropriate prescribing of targeted drugs, for example, inappropriate antibiotics and less effective vasodilators and analgesics.
Have a policy prohibiting the access of pornographic or inappropriate websites and consider software that blocks inappropriate websites.
Having unrestricted access to information and peocessing inappropriate content and making inappropriate contact with others.
Inappropriate Public Displays of Affection between students including holding, kissing, inappropriate touching, etc, are not permitted.
Examples of inappropriate conduct include erotic dancing or inappropriate touching.
What is inappropriate in yourclassroom should be deemed inappropriate online.
Coverage requirements, inappropriate enrollment, inappropriate level of services.

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.