I suddenly realized what I'd said, but it was too late.
- The door suddenly flew open.
- Rosie suddenly grasped my hand.
- I was woken up suddenly by the sound of someone hammering on the front door.
- He suddenly appeared in the doorway.
- I suddenly became aware of him looking at me.
Thesaurus: synonyms and related words
- ad hoc
- ad lib
- against (all) the odds/against all odds idiom
- all at once idiom
- all of a sudden idiom
- it's just one of those things idiom
- just like that idiom
- make sth up as you go along idiom
- muddle along
- undreamed of