adv. (UN-1 11.)
1776. G. Semple, Building in Water, 4. The cost did not exceed 100 guineas, as I had unpremeditatedly mentioned to Mr. Prior.
1826. Disraeli, V. Grey, I. i. He could unpremeditatedly clothe his conceptions in language characteristic of the style of any particular author.
1884. Contemp. Rev., Feb., 250. There is not one of his writings which does not do for us as it were by the way and unpremeditatedly, what [etc.].