Synset

(sometimes followed by `to') minor or casual or subordinate in significance or nature or occurring as a chance concomitant or consequence
<adj.all>   freq. cnt.: 1 freq. cnt.: 1

incident

incidental

sample sentences

"incidental expenses"
"the road will bring other incidental advantages"
"extra duties incidental to the job"
"labor problems incidental to a rapid expansion"
"confusion incidental to a quick change"