| Word | Definitions | Synonyms |
|---|---|---|
| sudden | (adjective) happening without warning or in a short space of time | - |
| suddenly | (adverb) quickly and without warning; happening unexpectedly; on impulse; without premeditation | Synonyms: abruptly, all of a sudden, dead, of a sudden, on the spur of the moment, short |
| suddenness | (noun) the quality of happening with headlong haste or without warning | Synonyms: abruptness, precipitance, precipitancy, precipitateness, precipitousness |