n't care less)
21I couldn't care less — I (or he, she, etc.) couldn t (or informal also could) care less informal used to express complete indifference he couldn t care less about football …
22could care less — see ↑care, 2 • • • Main Entry: ↑could …
23could care less — See couldn t care less …
24could(n't) care less — idi could(n t) care less, to be completely unconcerned …
25couldn't care less — doesn t care, is not interested …
26couldn't care less — I do not care at all …
27less — less·est; less·ness; let·ter·less; li·cense·less; lid·less; life·less; life·less·ly; life·less·ness; light·less; light·less·ness; limb·less; lime·less; lim·it·less; line·less; lint·less; lip·less; list·less; list·less·ly; list·less·ness;… …
28care — [ker] n. [ME < OE caru, sorrow < IE base * ĝar , cry out, scream > L garrulus, garrulous, Goth kara, care, Ger kar , in karfreitag, Good Friday] 1. a) a troubled or burdened state of mind; worry; concern b) a cause of such a mental state …
29care — care·ful; care·ful·ly; care·ful·ness; care; medi·care; care·less; care·free·ness; care·less·ly; care·less·ness; …
30care — The modern colloquial expression I couldn t care less dates from the 1940s (OED: the first example is of a book title). More recent is the AmE expression I could care less, which has more or less the same meaning (My ordeal was over and I could… …