sudden: Meaning and Definition of

sud•den

1. happening, coming, made, or done quickly, without warning, or unexpectedly: a sudden attack.
2. occurring without transition from the previous form, state, etc.; abrupt: a sudden turn.
3. impetuous; rash.
4. quickly made or provided.
5. unpremeditated.

1. suddenly.

1. an unexpected occasion or occurrence.
2. without warning; unexpectedly; suddenly.