indispensable/ˌɪndɪˈspɛnsəbəl/EtymologyBorrowed from Middle French indispensable, from Medieval Latin indispensābilis, corresponding to in- + dispensable.indispensable means absolutely necessary or requisite; that one cannot do without. Lexicurio rates it Distinctive — a strength score of 65 out of 100.adjAbsolutely necessary or requisite; that one cannot do without.“An indispensable component of a heart-healthy diet.”Unbendable, that cannot be set aside or ignored.“The law was moral and indispensable.”Not admitting ecclesiastical dispensation; not subject to release or exemption; that cannot be allowed by bending the canonical rules.nounA thing that is not dispensable; a necessity.Trousers.