Laconic vs Sardonic - What's the difference?

As adjectives the difference between laconic and sardonic

is that laconic is using as few words as possible; pithy and concise while sardonic is scornfully mocking or cynical.

(Laconic phrase)

(en adjective)

Using as few words as possible; pithy and concise.

* Alexander Pope

I grow laconic even beyond laconicism; for sometimes I return only yes, or no, to questionary or petitionary epistles of half a yard long.

* Welwood

His sense was strong and his style laconic .

* concise, pithy, terse

* bombastic, long-winded, verbose, loquacious, prolix

(en adjective)

Scornfully mocking or cynical.

He distances himself from people with his nasty, sardonic laughter.

* Sir H. Wotton

strained, sardonic smiles

* Burke

the scornful, ferocious, sardonic grin of a bloody ruffian

Disdainfully or ironically humorous.