What is another word for unexpendable?
Pronunciation: [ˌʌnɛkspˈɛndəbə͡l] (IPA) 
Unexpendable means something that cannot be used up completely or is indispensable. There are several synonyms for this word, including indispensable, irreplaceable, invaluable, necessary, essential, crucial, and vital. Indispensable refers to something that is absolutely necessary and cannot be replaced. Irreplaceable refers to something that cannot be substituted or replaced by something else. Invaluable refers to something that is extremely valuable or important. Necessary refers to something that is required or needed in order to achieve a particular result. Essential, crucial, and vital all refer to something that is absolutely necessary and cannot be overlooked or neglected. These synonyms can all be used interchangeably with the word unexpendable depending on the context of the sentence.
