depression (n.)
- abatement
 - abridgment
 - abstraction
 - abulia
 - agony
 - alienation
 - alleviation
 - alveolus
 - anguish
 - antrum
 - anxiety
 - apathy
 - armpit
 - attenuation
 - bale
 - basin
 - bitterness
 - blaze
 - bleakness
 - blues
 - boom
 - bowl
 - bust
 - cavity
 - cheerlessness
 - cleft
 - compulsion
 - concavity
 - contraction
 - crater
 - crisis
 - crushing
 - crypt
 - cup
 - cut
 - dampening
 - debasement
 - decrease
 - decrement
 - deduction
 - deepening
 - deflation
 - dejectedness
 - dejection
 - dent
 - depreciation
 - desolation
 - despair
 - despondency
 - detachment
 - digging
 - diminution
 - dimple
 - dip
 - discomfort
 - discouragement
 - disheartenment
 - dispiritedness
 - distress
 - distressfulness
 - downer
 - downheartedness
 - downturn
 - dreariness
 - drilling
 - dying
 - elation
 - emotionalism
 - euphoria
 - excavation
 - expansion
 - extenuation
 - extremity
 - fold
 - follicle
 - gash
 - gloom
 - gloominess
 - glumness
 - grief
 - growth
 - hack
 - heartache
 - heartlessness
 - hole
 - hollow
 - hollowness
 - hopelessness
 - hypochondria
 - hysteria
 - hysterics
 - impression
 - incision
 - incurvation
 - incurvature
 - indentation
 - indifference
 - infelicity
 - insensibility
 - jag
 - jog
 - joggle
 - joylessness
 - lacuna
 - lamentation
 - lessening
 - lethargy
 - letup
 - low
 - lowering
 - lowness
 - lying
 - malaise
 - mania
 - melancholia
 - melancholy
 - miniaturization
 - mining
 - misery
 - mitigation
 - mournfulness
 - nick
 - nock
 - notch
 - obsession
 - oppression
 - pain
 - painfulness
 - pathos
 - peak
 - peaking
 - pessimism
 - pit
 - poignancy
 - preoccupation
 - proneness
 - prosperity
 - prostration
 - recess
 - recession
 - reclining
 - recovery
 - reduction
 - relaxation
 - sadness
 - scoop
 - score
 - scotch
 - sharpness
 - shell
 - shortness
 - simplicity
 - sink
 - sinking
 - sinus
 - slowdown
 - slump
 - socket
 - sorrowfulness
 - spiritlessness
 - squatness
 - squattiness
 - stupor
 - subtraction
 - tic
 - trough
 - twitching
 - unhappiness
 - unresponsiveness
 - upturn
 - weakening
 - withdrawal
 - woe
 - woefulness
 - wretchedness