sidelinerEtymologyFrom sideline + -er.nounOne who stays on the sidelines; a spectator or nonparticipant.“The result is more dissent because successful collective action sustains the involvement of old participants while convincing sideliners of the usefulness of protest and ensuring their future participation […]”A beekeeper, neither a hobbyist nor a fully-fledged commercial operator, for whom beekeeping is a secondary source of income.One who sidelines or marginalizes something.