Critical
Critical adjective - Needing immediate attention.
Usage example: this problem isn't critical, so we can go home now and tend to it in the morning
Perilous is a synonym for critical in grave topic. In some cases you can use "Perilous" instead an adjective "Critical", when it comes to topics like dangerous, urgently important. popular alternative
Perilous
Perilous adjective - Involving potential loss or injury.
Critical is a synonym for perilous in dangerous topic. You can use "Critical" instead an adjective "Perilous", if it concerns topics such as precarious. popular alternative
Nearby Words: peril, perilously, periled
Mutual synonyms
Cite this Source
Perilous and Critical. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/critical/perilous
Critical & Perilous. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/critical/perilous>.
Perilous or Critical. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/critical/perilous.
Google Ngram Viewer shows how "critical" and "perilous" have occurred on timeline