lethargy (n.)
- abstraction
- abulia
- acedia
- alienation
- aloofness
- anxiety
- apathy
- asininity
- ataraxia
- blah
- blahs
- boorishness
- boredom
- catalepsy
- coma
- comatoseness
- compulsion
- crassness
- crudeness
- dejection
- denseness
- density
- depression
- detachment
- dimness
- disinterest
- dispassion
- disregard
- drowsiness
- dullness
- dumbness
- elation
- emotionalism
- enervation
- ennui
- euphoria
- exhaustion
- fatigue
- grossness
- heartlessness
- heaviness
- hebetude
- heedlessness
- high
- hopelessness
- hypochondria
- hysteria
- hysterics
- idleness
- impassivity
- inactivity
- inanition
- indifference
- indolence
- inertia
- inertness
- insensibility
- insouciance
- languor
- lassitude
- laziness
- lenitude
- lifelessness
- listlessness
- mania
- melancholia
- narcolepsy
- narcosis
- nod
- nonchalance
- numbness
- obsession
- obtuseness
- opacity
- oscitancy
- pandiculation
- passiveness
- passivity
- phlegm
- preoccupation
- resignation
- sedation
- shock
- sleep
- sleepiness
- sloth
- slothfulness
- slowness
- sluggishness
- slumber
- somnolence
- sopor
- sottishness
- spiritlessness
- stolidity
- stretching
- stupefaction
- stupidity
- stupor
- swoon
- tic
- tiredness
- torpidity
- torpidness
- torpor
- trance
- twitching
- unconcern
- unmindfulness
- unresponsiveness
- weakness
- weariness
- withdrawal
- withdrawnness
- world-weariness
- yawning
