Difference between Amateurs and Nonprofessional

AMATEURS vs NONPROFESSIONAL: NOUN

Not professional; amateur
Not done by, or proceeding from, professional men; contrary to professional usage; unprofessional.
Not belonging to a profession.
Not professional; not engaged in a profession or engaging in as a profession or for gain

Not professional
Hence, not proper to be done by a member of the profession concerned; unprofessional.
Not belonging to a profession; not done by or proceeding from professional men.

Watchers, Fans, Lovers, Drinkers, Collectors, Buffs, Connoisseurs, Aficionados, Enthusiasts, Unpaid, Unprofessional, Inexpert, Recreational, Unskilled, Nonprofessional

Inexperienced, Skilled, Nonmedical, Nontechnical, Semiprofessional, Avocational, Unskilled, Professional, Unprofessional, Informal, Untrained, Lay, Unpaid, Recreational, Amateur

Journeymen, Pros, Golfers, Supporters, Fans, Drinkers, Collectors, Connoisseurs, Aficionados, Unpaid, Unprofessional, Inexpert, Recreational, Unskilled, Nonprofessional

Inexperienced, Skilled, Nonmedical, Nontechnical, Semiprofessional, Avocational, Unskilled, Professional, Unprofessional, Informal, Untrained, Lay, Unpaid, Recreational, Amateur

All other players are considered to be amateurs.
Liberals attempt it, but are amateurs by comparison.
Too bad this is not written for amateurs.
He won the amateurs cup during that time.
THE AMATEURS SECURING MANY ICE AND SNOW SCENES.
Many amateurs are willing to assist other hams.
To make the great SAS look like amateurs.
NOTE: Male amateurs and juniors will play from the white tees; female amateurs and juniors will play from the red tees.
And because RPG theory holds only meager academic and societal status, most RPG theory and criticism is produced by critical amateurs for critical amateurs.
We like using excuses of being amateurs and if we continue to say that, we will remain as amateurs.

INCLUDED: All professional and nonprofessional employees of the National Forests in Florida.
ASD Procurement Office in accordance with APSPM requirements for nonprofessional services.
INCLUDED: All professional and nonprofessional employees of the Kootenai National Forest.
List all staff, professional and nonprofessional, even when not requesting salary.
Much of her nonprofessional life had been devoted to education.
Board rules; nonprofessional training is provided on the job.
Attribution of educational outcomes by professional and nonprofessional instructors.
These are serious challenges to nonprofessional support providers.
NONPROFESSIONAL TESTING INFRASTRUCTUREThe term nonprofessional testing infrastructure refers to a testing environment with little device capacities and without standardized buying processes.
OPRA recently increased its Nonprofessional Subscriber Fee, and increased the cap for Nonprofessional Subscribers at that time.