The opinion or conviction that sports ought not to be played for money.(noun)
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Use "amateurism" in a sentence
"LONG: We're hearing the term amateurism, or amateurs, being tossed around when we refer to today's fiery explosion here at the airport and the bombings that did not happen yesterday."
"This spirit of amateurism is part of what makes blogging vital; the idea that, "hey, I can do that!" is not an insult but an inspiration."
"It's much more in the spirit of amateurism, which is what the Olympics is supposed to be about."