incidental (suomeksi)

oheis- (a)
sivu- (a)
oheiskulut (s: yksiköllinen)
epäolennainen (a: loosely associated; existing as a byproduct, tangent, or accident; being a likely consequence)
satunnainen (a: occurring by chance)
tuleva (a: entering or approaching, prior to reflection)
sivuseikka (s: something that is incidental / sivuseikka / sthg of minor importance)
sattuma (s: something that is incidental / sivuseikkasattuma / chance, accident)