slack (n.)
- abandon
- abatement
- ambling
- asthenic
- backward
- bagging
- bate
- blah
- bones
- cataleptic
- cautious
- chaff
- chicken
- choke
- comb
- crawling
- creeping
- culm
- cut
- damp
- dangling
- dead
- deadwood
- decline
- decrease
- delay
- delinquent
- derelict
- diminution
- dishwater
- do-nothing
- dodge
- down
- downturn
- dregs
- duck
- dust
- dwindling
- ease
- easy
- faineant
- faint
- faltering
- flagging
- flapping
- flat
- floppy
- foul
- free
- garbage
- gash
- gentle
- give
- goldbrick
- gone
- good-for-nothing
- gradual
- grubby
- hanging
- heavy
- hogwash
- idle
- imbecile
- inactivity
- jump
- laggard
- lagging
- lax
- leave
- lees
- lessening
- light
- limber
- limp
- limping
- lingering
- logy
- looseness
- lull
- lumbering
- miss
- moderate
- neglect
- off
- offal
- omit
- orts
- out
- passive
- pause
- play
- poking
- poky
- reduction
- refuse
- release
- remiss
- remit
- room
- rubbery
- scatter
- scraps
- scum
- shavings
- shoddy
- shuffling
- skip
- slackening
- slackness
- slag
- sleeping
- slop
- slops
- slow
- smother
- snuff
- soldier
- soporific
- standing
- static
- stifle
- stoic
- streaming
- stubble
- swill
- tame
- tares
- tire
- trifle
- wanton
- wastage
- waste
- weak
- weeds
- welsh
slack (v.)
- abandon
- abate
- backward
- bate
- chaff
- choke
- comb
- cut
- damp
- dead
- decline
- decrease
- delay
- deliberate
- diffuse
- diminish
- disjoin
- disperse
- dodge
- dormant
- douse
- down
- duck
- dull
- dust
- ease
- easy
- extinguish
- faint
- feeble
- flat
- foul
- free
- gash
- gentle
- give
- goldbrick
- idle
- jump
- lax
- leave
- light
- limber
- limp
- loose
- loosen
- lull
- malinger
- miss
- mitigate
- moderate
- neglect
- numb
- off
- omit
- out
- pause
- play
- pretermit
- procrastinate
- quench
- refuse
- relax
- relaxed
- release
- remiss
- remit
- room
- scatter
- scum
- shirk
- skip
- skulk
- slacken
- slag
- slake
- slop
- slow
- smother
- snuff
- soldier
- stifle
- swill
- tame
- tire
- trifle
- unbend
- unbrace
- unlax
- unleash
- unstrain
- unstring
- unwind
- wanton
- waste
- weak
- weaken
- welsh
slack (adj.)
- abeyant
- aloof
- ambling
- anemic
- apathetic
- asthenic
- backward
- bagging
- baggy
- bate
- beat-up
- bedraggled
- behindhand
- benumbed
- blase
- bloodless
- blowzy
- bone-lazy
- careless
- cataleptic
- catatonic
- cautious
- chicken
- chintzy
- circumspect
- comatose
- cowardly
- cut
- damp
- dead
- debilitated
- deliberate
- delinquent
- derelict
- detached
- diffuse
- dilapidated
- dilatory
- disinterested
- do-nothing
- dopey
- dormant
- down
- draggled
- drooping
- droopy
- dull
- dust
- dwindling
- ease
- easy
- easygoing
- effete
- etiolated
- faineant
- faint
- faltering
- feeble
- flabby
- flaccid
- flagging
- flat
- floppy
- foul
- free
- frowzy
- frumpish
- frumpy
- gentle
- give
- gone
- good-for-nothing
- gradual
- groggy
- grubby
- gutless
- halting
- hanging
- heartless
- heavy
- hopeless
- idle
- imbecile
- impotent
- imprecise
- inactive
- inadvertent
- inattentive
- indifferent
- indolent
- inert
- infirm
- informal
- insouciant
- lackadaisical
- laggard
- lagging
- laissez-faire
- languid
- languorous
- latent
- lax
- lazy
- leaden
- leisurely
- lenient
- lethargic
- lifeless
- light
- limber
- limp
- listless
- logy
- loose
- lumbering
- lumpen
- messy
- miss
- moderate
- mussy
- neglectful
- negligent
- nerveless
- nonaggressive
- nonchalant
- nonrestrictive
- numb
- numbed
- off
- off-guard
- otiose
- out
- overindulgent
- parasitic
- passive
- permissive
- phlegmatic
- play
- poky
- powerless
- promiscuous
- ragged
- regardless
- relaxed
- release
- reluctant
- remiss
- rickety
- room
- rubbery
- ruinous
- sagging
- sapless
- scraggly
- sedentary
- seedy
- shabby
- shaky
- shiftless
- shoddy
- slatternly
- sleeping
- slighting
- slipshod
- sloppy
- slothful
- slovenly
- slow
- slow-moving
- sluggish
- sluttish
- smoldering
- snuff
- soft
- soporific
- sordid
- spineless
- spiritless
- squalid
- staggering
- stagnant
- standing
- static
- stoic
- streaming
- stupefied
- supine
- suspended
- tacky
- tame
- tattered
- tentative
- tire
- torpid
- tottering
- uncaring
- unconcerned
- unenterprising
- unguarded
- unhardened
- unhurried
- uninterested
- unkempt
- unnerved
- unrestrained
- unsightly
- unsteady
- unstrung
- untidy
- unwary
- unwatchful
- wanton
- waste
- wayward
- weak
- weakly
- welsh
- withdrawn
- work-shy
