Adjective

(en-adj)

Without humor or expression of happiness; grave in manner or disposition; earnest; thoughtful; solemn.

It was a surprise to see the captain, who had always seemed so serious , laugh so heartily.

Important; weighty; not trifling; leaving no room for play; needing great attention; critical.

This is a serious problem. We'll need our best experts.

Really intending what is said; being in earnest; not jesting or deceiving; meaningful.

After all these years, we're finally getting serious attention.

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.