(noun, adjective)


1. absolutely necessary; vitally necessary

- essential tools and materials

- funds essential to the completion of the project

Similar word(s): necessary, indispensable

2. basic and fundamental

- the essential feature

Similar word(s): crucial, important, biogenic, constituent, constitutional, constitutive, organic, must, staple, substantial, substantive, virtual, vital, indispensable, unexpendable, intrinsic, intrinsical, necessary, primary

3. of the greatest importance

- in chess cool nerves are of the essence

Similar word(s): important, crucial

4. being or relating to or containing the essence of a plant etc

- essential oil

5. defining rights and duties as opposed to giving the rules by which rights and duties are established

Similar word(s): substantive

Sentences with essential as an adjective:

- Don’t mind him being grumpy. That’s the essential Fred.


1. anything indispensable

- the essentials of the good life

Similar word(s): necessary, necessity, requirement, requisite

Definition categories: object, thing