critical

adjective
/ˈkɹɪt.ɪ.kəl/

Inclined to find fault or criticize.

Example

“A good teacher is fair but critical.”

Other meanings

Pertaining to, or indicating, a crisis or turning point.
“This is a critical moment.”
Extremely important.
“It's critical that you deliver this on time.”

Example sentences

“The pollution levels had reached a critical point.”
Tatoeba · Igider · CC0

Where this comes from

This definition is adapted from “critical” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.