arrived or arriving unexpectedly.

appearing casually.

developed out of the usual order or place; added from outside; not inherent; accidental; adventitious.

a guest either invited or arrived unexpectedly.

being under possession of; seized; captured.

that which has been captured or taken into possession (esp. by overpowering).

the state of having enough or more than enough or a large amount; plentifulness; abundance.

the quality of being greater, better etc than another; greatness; excellence.

the state of being successful or prosperous.

a piled up mass; a heap.