Alert
Sudden
Sudden adjective - Not expected.
Alert and sudden are semantically related. Sometimes you can use "Alert" instead an adjective "Sudden".
Nearby Words: suddenly, suddenness
Both words in one sentence
- They decided to let the stories get published because the sudden absence of them after years of them would alert other nations that they were being censored because of real life research.
Source: Fiction as Cover-Up - Truth in Television: Police or military forces under high alert, usually because of a heightened threat of terrorism, may be instructed to fire upon any suspicious or sudden movement by a person they're suspecting of carrying explosives.
Source: Shoot Him, He Has a Wallet! -
Sudden Sequel Death Syndrome / Sequel Non-Entity: All of the characters from the original Red Alert 3 (or the characters borrowed from other Command and Conquer games) have either been killed or otherwise reduced to a state of non-importance.
Cite this Source
Sudden and Alert. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/alert/sudden
Alert & Sudden. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/alert/sudden>.
Sudden or Alert. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/alert/sudden.
Google Ngram Viewer shows how "alert" and "sudden" have occurred on timeline