? Grave, sober.

Quiet or sedate in demeanour; of grave, dignified, or discreet deportment; serious or staid in character or conduct.

Not in festival trim.

Grave, modest, demure. Now only in mure-hearted: see compounds.

Not prone to laughter; serious, sober.

Of thought, consideration, etc.: mature, serious, grave, considered. Obsolete (but cf. in sad earnest at phrases 1).

Solemn.

Solemn, in various senses.

Of a person: having a grave or solemn disposition, as a permanent attribute or tendency; of an earnest nature; having depth or solidity of…

Of a serious, grave, or earnest character. Of actions, feelings, etc.

Solemn, in various senses.

Solemn.

Mild, gentle; demure. Also: affected in manners, prim; reserved, unsocial.

Of persons (and their bearing, speech, etc.): Sober, grave, serious; reserved or composed in demeanour. (Cf. history of sad, adj. n.adv.)

Of persons, their character, aspect, speech, or behaviour: Marked by weighty dignity; of reverend seriousness. In later use with wider sense, of…

Settled in character; of grave or sedate deportment; dignified and serious in demeanour or conduct… of a person, his actions, attributes, etc.

Grave, dignified, solemn. Obsolete.

Solemn, serious. Obsolete.

Serious, grave; expressing seriousness or gravity, earnest, solemn. Obsolete.

Of persons. Sober-minded, of reliable judgement, in practical matters; steady, sedate, staid.

Befitting a censor; grave, severe. Obsolete.

(as) grave (also solemn,etc.) as a judge.

(un-, prefix1 affix 1.)

That has assumed a permanent form or condition; immovable, persistent. Of demeanour: Composed, grave. Obsolete.

literary. Never laughing; morose, laughter-hating.

Grave, serious. Obsolete. rare.

Lacking (a sense of) humour.

Not laughing; not given to laughter; characterized by a lack of laughter; stern, solemn.

Of persons, the features, expression, etc.: Exhibiting no smile; never smiling; grave, severe.

(un-, prefix1 affix 4.)

(un-, prefix1 affix 4.)

Not given to frivolity; staid.

Of a person's thoughts: characterized by abstractedness or idle musing (cf. brown study, n.). Later more generally: characterized by solemn…

Opposed to fun or festivity.

Of a person: downcast, sombre, humourless in mood, disposition or appearance; miserable, gloomy; sober, sullen, dour.

(un-, prefix1 affix 4.)

Devoid of laughter; mirthless, unamusing.

(un-, prefix1 affix 1.)

Devoid of glee.

(un-, prefix1 affix 1.)

Explained by Carroll as: grave, solemn. (Only in Carroll and later allusions.)

Full of deeds or activity; active. Also, earnest, serious.

Originally and chiefly North American. Having or characteristic of a conventional or conservative attitude; staid, repressed. Cf. buttoned-down, adj.…

Originally and chiefly North American. Having or characteristic of a conventional or conservative attitude or appearance; staid, formal…

solemn, serious (cf. sense A. 8a).