critical
US /ˈkrɪt̬.ɪ.kəl/
UK /ˈkrɪt̬.ɪ.kəl/

1.
expressing adverse or disapproving comments or judgments
:
•
He received a lot of critical feedback on his performance.
•
The reviews of the new movie were highly critical.
2.
3.
involving the objective analysis and evaluation of an issue in order to form a judgment
:
•
She has a highly developed critical thinking ability.
•
The course aims to foster students' critical analysis skills.
4.
(of a disease or patient) at a stage at which life is in danger
:
•
The patient's condition is still critical.
•
He was admitted to the hospital in critical condition.