By surprise
Unprepared and by surprise are semantically related. in suddenly topic. In some cases you can use "Unprepared" instead an adverb phrase "By surprise".
Unprepared
Unprepared adjective - Made or done without previous thought or preparation.
By surprise and unprepared are semantically related. You can use "By surprise" instead an adverb "Unprepared".
Mutual synonyms
Both terms in one sentence
- Needless to say, they were completely taken by surprise and grossly unprepared for when the humans unanimously put aside their differences to defeat the one enemy that was now a bigger threat to them than themselves: the ponies of Equestria.
Source: Fanfic / The Negotiations-verse
Cite this Source
Unprepared and By surprise. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/by_surprise/unprepared
By surprise & Unprepared. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/by_surprise/unprepared>.
Unprepared or By surprise. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/by_surprise/unprepared.
Google Ngram Viewer shows how "by surprise" and "unprepared" have occurred on timeline