Stringent

stringent
Meaning: 
This word is used to describe rules or conditions which are strict and often higher than normal.

EG

The Chinese government have introduced stringent measures to ensure public safety.

The new regulations are stringent.

Part of Speech: 
adjective
Pronunciation: 

/ˈstrɪndʒ(ə)nt/

Grammar: 
Notice that the adjective is used before the noun it describes except in simple senteces when the verb "to be" is used.
Word Family: 
stringency ​(noun); stringently ​(adverb)
Examples: 

At this time stringency is acceptable. (noun)

We stringently advice you to stay at home. (adverb)