UNCONCERN, UNCONCERNED
ADJECTIVES
► LACKADAISICAL dreamily idle, listless, unconcerned, unenthusiastic → M18
► LACKADAISY dreamily idle, listless, unconcerned, unenthusiastic → L18
► LAID-BACK relaxed or easygoing; unconcerned; unhurried; casual → 1969 US colloq.
► MATTERLESS indifferent, unconcerned, uninterested → 1760 Eng. dial.
► NOT FUSSED unconcerned → 1988 UK sl.
► NOT GIVE A CENT unconcerned → 1913 Amer. dial. (Bk.)
► NOT GIVE A CUSS unconcerned → 1913 Amer. dial. (Bk.)
► NOT GIVE A DARN unconcerned → 1913 Amer. dial. (Bk.)
► SANS SOUCI unconcerned → 1797
NOUNS
► SANS SOUCI unconcern → 1797
► SANS-SOUCI-ISM unconcern → 1837
► FIGMO FACTOR the amount of unconcern displayed at any particular time → 1969 US Air Force Academy cadets’ sl. (Bk.)
PHRASES
► NOT A BOTHER ON SOMEONE expressing unconcern or contentment → 1996 Irish sl.
► NOT CARE A CUSS not care in the slightest; to be completely indifferent, unconcerned, or uninterested → 1843
► NOT GIVE A CUSS not care in the slightest; to be completely indifferent, unconcerned, or uninterested → 1894
► NOT TO GIVE A MONKEY’S to be completely indifferent or unconcerned; not to care at all → 1960 sl.
► NOT TO CARE A MONKEY’S FUCK to be completely indifferent or unconcerned; not to care at all → 1961 sl.
VERBS
► LET THE WORLD WAG to regard the course of events with unconcern → a1529
► LET THE WORLD WAG AS IT WILL to regard the course of events with unconcern → 1611
► WALK COOL to act in an unconcerned, relaxed manner, esp. in the face of problems or menaces → 1960s African-American sl.
Lexicophilia 