stringent (n.)
stringent (adj.)
- acid
- acidulous
- acrid
- acrimonious
- astringent
- austere
- authoritarian
- binding
- biting
- bitter
- bleak
- caustic
- confining
- cutting
- demanding
- double-edged
- dour
- draconian
- edged
- exacting
- exigent
- fierce
- grim
- hard
- harsh
- incisive
- inclement
- keen
- meticulous
- mordacious
- mordant
- penetrating
- piercing
- poignant
- rigorous
- rough
- rugged
- scathing
- severe
- sharp
- stabbing
- stern
- stinging
- strict
- strident
- tart
- tough
- trenchant
- ungentle
- unsparing
- vehement
- violent
- virulent
- vitriolic
