demanding

equivalents

exacting

exigent

hard-to-please

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rigorous

stern

strict

stringent

tight

synonyms

Herculean

Spartan

Spartanic

abstruse

accurate

arduous

astringent

attentive

austere

authoritarian

bossy

brutal

burdensome

cajoling

clamant

clamorous

close

coaxing

complex

conscientious

correct

critical

crying

delicate

detailed

difficile

difficult

dour

draining

dunning

exact

exacting

exigent

exorbitant

exquisite

extortionate

fine

finical

finicking

finicky

formidable

fussy

grasping

grievous

grim

hairy

hard

hard-earned

hard-fought

harsh

rhymes

banding

branding

commanding

disbanding

expanding

handing

landing

misunderstanding

notwithstanding

outstanding

sanding

standing

stranding

understanding

withstanding