adj.
1.(sometimes followed by `to') minor or casual or subordinate in significance or nature or occurring as a chance concomitant or consequence
2.following as a consequence
3.not of prime or central importance incidental n.
1.(frequently plural) an expense not budgeted or not specified
2.an item that is incidental
Idiom of the Day
pull up one's socks or pull one's socks up
to make a greater effort than before to do something
"You had better pull up your socks or you will not be able to continue working here."