stringent
adjective
uk/ˈstrɪndʒənt/ usstringent laws, tests, etc. are extremely severe or limiting and must be obeyed:
Stringent security measures have been introduced at all airports.
Regulators are forcing issuers to adopt more stringent criteria.
stringent rules/regulations/laws
stringent conditions/requirements
stringent checks/controls/tests
ECONOMICS
involving very little money being available for spending or borrowing as a result of firm controls:
Stringent cost management is counterproductive when it interferes with a firm's ability to grow.
stringent cost-cutting/cuts Prices are now falling slightly after stringent budget-deficit cuts.
stringently
adverb
Drugs are the most stringently regulated of all consumer goods.