All indispensable synonyms
in·dis·pen·sa·ble
I i adj indispensable
- crucial — If you describe something as crucial, you mean it is extremely important.
- vital — of or relating to life: vital processes.
- imperative — imperative language
- fundamental — serving as, or being an essential part of, a foundation or basis; basic; underlying: fundamental principles; the fundamental structure.
- basic — You use basic to describe things, activities, and principles that are very important or necessary, and on which others depend.
- basal — Basal means relating to or forming the base of something.
- cardinal — A cardinal is a high-ranking priest in the Catholic church.
- key — a small metal instrument specially cut to fit into a lock and move its bolt.
- needed — necessary, required, or wanted (usually used in combination): a much-needed vacation.
- prerequisite — required beforehand: a prerequisite fund of knowledge.
- primary — first or highest in rank or importance; chief; principal: his primary goals in life.
- required — to have need of; need: He requires medical care.
- requisite — required or necessary for a particular purpose, position, etc.; indispensable: the requisite skills of an engineer.
- necessitous — destitute or impoverished; needy; indigent: to aid a necessitous young mother.
- needful — necessary or required: needful supplies.
adjective indispensable
- necessary — being essential, indispensable, or requisite: a necessary part of the motor.
- essential — Absolutely necessary; extremely important.
- obligatory — required as a matter of obligation; mandatory: A reply is desirable but not obligatory.