doldrums (n.)
- anticyclone
- antitrades
- apathy
- blahs
- blues
- boredom
- calm
- dejection
- depression
- disinterest
- dormancy
- dumps
- ennui
- gloom
- inactivity
- indifference
- intermission
- interruption
- latency
- listlessness
- lull
- megrims
- mopes
- mumps
- quiescence
- quiescency
- retardation
- slump
- stagnation
- suspension
- trades
- windlessness
- yawn