Difference between Unprofessional and Inexpert

UNPROFESSIONAL vs INEXPERT: ADJECTIVE

Not befitting a certain profession or a member of a profession; not in keeping with the rules of a certain profession: as, unprofessional conduct.
Not belonging to a profession: as, an unprofessional man.
Not pertaining to one's profession.

Not expert; not skilled; not having knowledge or dexterity derived from practice.

Unethical, Unbecoming, Discourteous, Disrespectful, Lay, Vocational, Occupational, Career, Nonprofessional, Untrained, Professional, Amateur, Unskilled, Inexpert, Amateurish

Unintelligent, Artless, Incompetent, Uninformed, Unschooled, Unsophisticated, Clumsy, Inept, Unknowledgeable, Untutored, Untrained, Amateur, Unskilled, Unprofessional, Amateurish

Unethical, Unbecoming, Discourteous, Disrespectful, Lay, Vocational, Occupational, Career, Nonprofessional, Untrained, Professional, Amateur, Unskilled, Inexpert, Amateurish

Unintelligent, Artless, Incompetent, Uninformed, Unschooled, Unsophisticated, Clumsy, Inept, Unknowledgeable, Untutored, Untrained, Amateur, Unskilled, Unprofessional, Amateurish

Haul as unprofessional, inconsistence, inconsiderate, disrespectful and belittling.
Good apartment amenities with a horrible unprofessional management.
Unprofessional behaviour was rampant and sales were poor.
Obviously, this kind of behavior is extremely unprofessional.
Very unprofessional communication and no customer service skills.
This carwash is small minded, rude and unprofessional.
The management is extremely rude, disrespectful, and unprofessional.
They have been nothing but unprofessional with me.
She states for unacceptable conduct and performance, sample letter of reprimand for unprofessional conduct pertaining to unprofessional will.
They categorize certain behaviours on social media into two categories: unprofessional and possibly unprofessional.

And we shudder to think an inexpert user would have to know curves to get good results.
It is possible that our inexpert rowing is actually noisier than the Nics slow revving propeller.
Inexpert as they were, they managed to develop and maintain a substantial cabinet of wonderful things.
And I am an inexpert homeowner that tuned an unwanted garden tub into a shower stall.
The inexpert employees come when they are free at any time of the day or evening.
The singing is inexpert and uneven, the dancing better but still looks a little forced.
TD system requires the service providers to make sometimes inexpert decisions on whether copyright has been infringed.
Crucible is still a massive hit among both experienced players and yet inexpert newbies.
So despite his inexpert litigating, Morillo appears to have come out on top.
In our own inexpert way, we had sort of gathered that.