Related Clues:
- Storm's predecessor
- With nary a wave
- Conducive to meditation
- Calm and composed
- Bane for sailors
- Become less stressed (with "out")
- Zero on the Beaufort scale
- Cool as a cucumber
- Apollonian
- Exhibiting equanimity
- Calm as can be
- Calm, cool and collected
- Smooth, as seas
- Like Type B personalities
- Anxiety-free