What is a synonym for critical?

The best synonym for "critical" depends on the context. Here are some options:

For when "critical" means "essential":

* Crucial

* Vital

* Pivotal

* Imperative

* Paramount

* Indispensable

For when "critical" means "negative and judgmental":

* Faultfinding

* Censorious

* Hypercritical

* Scathing

* Negative

* Demanding

For when "critical" means "important for making a judgment":

* Analytical

* Evaluative

* Objective

* Discerning

* Judicious

* Insightful

Other synonyms for "critical":

* Decisive

* Serious

* Dangerous

* Urgent

To choose the best synonym, consider the specific meaning of "critical" in the context you're using it in.