Definition of "unconcernedly"

Nothing was to be seen save flat meadows, cows for the most part feeding unconcernedly, and silvery pollard willows motionless in the warm sunlight.

1895–1897, H[erbert] G[eorge] Wells, “What I Saw of the Destruction of Weybridge and Shepperton”, in “The War of the Worlds”, in Pearson’s, London: C. Arthur Pearson Ltd, published 1897, pages 41–42

Willie flits up, catches another insect, drops unconcernedly to his perch again, runs along the bullock's back in his bounding-jockey act, swallows his meal and announces he's a 'sweet-pretty-little-creature'.

1934, Henry G[eorge] Lamond, An Aviary on the Plains, Sydney, N.S.W.: Angus & Robertson Limited, page 16