1. happening unexpectedly (Freq. 64) - suddenly she felt a sharp pain in her side • Syn: all of a sudden, of a sudden 2. quickly and without warning (Freq. 42) - he stopped suddenly • Syn: abruptly, short, dead • Derived from adjective: sudden, abrupt (for: abruptly) 3. on impulse; without premeditation (Freq. 3) - he decided to go to Chicago on the spur of the moment - he made up his mind suddenly • Syn: on the spur of the moment
