thoughtlesslyadv.

1706 Fashionable Lover iii. 38 I know your easie Nature wou'd sooner have distrusted my Friendship then your own danger and Thoughtlessly here run upon't.

1714 S. Garth Dispensary (ed. 7) v. 59 In restless Hurries thoughtlessly they live.

1792 V. Knox Serm. vi. 133 He who runs on thoughtlessly in the mad career of pleasure.

1806 C. Hutton Course Math. (ed. 5) I. 152 One thoughtlessly spends 10l. a year more than his pay.

1845 Jrnl. Royal Agric. Soc. 6 i. 212 Many workmen thoughtlessly force their feet between the weft or horizontal branches of the hurdle.

1890 C. Gross Gild Merchant I. 104 The arbitrary interpretation..which came to be thoughtlessly accepted as a fact.

1946 F. J. Osborn Green Belt Cities I. 182 Some planning writers have thoughtlessly renewed the old confusion by using the term Satellite Town to describe an Industrial Garden Suburb.

1961 E. Waugh Unconditional Surrender (1964) ii. v. 99 And so on, again and again throughout the afternoon until they moved briskly and thoughtlessly.

1977 E. Johnson Charles Dickens iv. 59 A rattle-brained little creature displaying her charms as thoughtlessly as a butterfly.

2005 Big Issue 3 Jan. 11/2 The match, still burning, nipped at his fingertips and thoughtlessly Greg chucked it to one side. Fumf!