indispensable

/ˌɪndɪˈspɛnsəbəɫ/

absolutely necessary; essential

indispensable in a sentence

“Clean water is indispensable for human survival.”

Medieval Latin indispensabilis, from in- not + dispensare to dispense with

Related Words

entail

to involve something as a necessary consequence

necessitate

to make something necessary as a result

compel

to force or oblige someone to do something

inexorable

impossible to stop or prevent

ineluctable

unable to be resisted or avoided; inescapable

inevitable

certain to happen; unavoidable