rigorous
- adjective (adj)
Meaning: severe exact
Synonyms:
accurate
ascetic
austere
bitter
brutal
burdensome
correct
definite
dogmatic
exacting
hard
harsh
inclement
inflexible
intemperate
ironhanded
meticulous
nice
onerous
oppressive
precise
proper
punctilious
right
rigid
rugged
scrupulous
stern
stiff
strict
stringent
uncompromising
unpermissive
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.