From Longman Dictionary of Contemporary Englishexpendableex‧pend‧a‧ble /ɪkˈspendəbəl/ adjective USELESSnot needed enough to be kept or saved It’s a sad moment when a man loses his job and discovers that he is expendable.
Examples from the Corpus
expendable• Eventually, he may feel parliament is expendable.• It was not like any previous architecture because it was supposed to be expendable.• The city council ranks them and votes to eliminate the most expendable.• The units are expendable and can easily be replaced so long as the tree is healthy.• Women were expendable birthing organisms for the glory of the family.• The truly rich can afford the tax advice and the expendable cash flow to avoid paying cap gains taxes all together.• expendable income• Everyone is expendable. No one's job is safe.• In another, they are merely expendable sacrifices to national economic development.From Longman Business Dictionaryexpendableex‧pend‧a‧ble /ɪkˈspendəbəl/ adjectiveACCOUNTING expendable supplies or items are ones of little value. Companies do not have to keep records of who has expendable items, and what they are being used for 