WordNet: rigorous, stringent, tight
demanding strict attention to rules and procedures; "rigorous discipline"; "tight security"; "stringent safety measures"
- similar to demanding
rigorous
- (englanti) rigorousness (derivationally related)
stringent
- (englanti) stringency (derivationally related)
- (suomi) jyrkkä (synonyymi)
tight
- (suomi) tiukka (synonyymi)