Related Clues:
- Less abundant
- Not so well-done
- Not so prevalent
- Less standard
- Comparatively freaky
- Closer to raw, as a steak
- A no-hitter compared to a one-hitter, e.g
- Harder to explain
- … 'It's more unusual to find diamonds in river'
- Harder to get
- Not so frequent
- Less grilled, say
- More enticing, to a stamp collector
- Farther afield
- Less done