Old English Synonyms
A small, unusual, and often interesting feature or habit.
A quirk is an idiosyncrasy, a peculiarity, or a strange habit.
1. Being afraid of birds is a quirk of hers.
2. He has a quirk of always whistling when he’s nervous.
3. It’s a quirk of hers to always dress in black.
4. His quirk is that he always has to have the last word.
5. It’s one of her quirks that she always has to have the radio on.