lackadaisical

adj

Etymology: From the archaic expression lackadaisy + -ic + -al.

1. Showing no interest, vigor, determination, or enthusiasm.

   “the lackadaisical look on his face”

   “I, at one time, used to go and take a hand at cribbage with a friend, and afterwards discuss a cold sirloin of beef, and throw out a few lackadaisical remarks, in a way to please myself, but it would not do long.”

2. Lazy; slothful; indolent.