Adjective

(en adjective)

Manifesting, exercising, or favoring rigour; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.

*{{quote-magazine, date=2013-08-03, volume=408, issue=8847, magazine=(The Economist)

, title= Boundary problems , passage=Economics is a messy discipline: too fluid to be a science, too rigorous to be an art. Perhaps it is fitting that economists’ most-used metric, gross domestic product (GDP), is a tangle too. GDP measures the total value of output in an economic territory. Its apparent simplicity explains why it is scrutinised down to tenths of a percentage point every month.}}

Severe; intense; inclement; as, a rigorous winter.

Violent.

Adjective

(er)

Strained; drawn close; tight.

strict embrace

strict ligature

Tense; not relaxed.

strict fiber

Exact; accurate; precise; rigorously nice.

to keep strict watch

to pay strict attention

Governed or governing by exact rules; observing exact rules; severe; rigorous.

* {{quote-book, year=1905, author=

, title= , chapter=2 citation , passage=No one, however, would have anything to do with him, as Mr. Keeson's orders in those respects were very strict  ; he had often threatened any one of his employés with instant dismissal if he found him in company with one of these touts.}}

very strict in observing the Sabbath

Rigidly interpreted; exactly limited; confined; restricted.

to understand words in a strict sense

(botany) Upright, or straight and narrow; — said of the shape of the plants or their flower clusters.

Severe in discipline.