Definition of "foolishly"

I never wish to offend, but I am so foolishly shy, that I often seem negligent, when I am only kept back by my natural aukwardness.

1811, [Jane Austen], chapter XVII, in Sense and Sensibility […], volume I, London: […] C[harles] Roworth, […], and published by T[homas] Egerton, […], page 220

“Nothing to speak of,” said Adam Woodcock, answering for the boy—“a foolish quarrel with me, which was more foolishly told over again to my honoured lady, cost the poor boy his place. […]”

1820, [Walter Scott], chapter XV, in The Abbot. […], volume I, Edinburgh: […] [James Ballantyne & Co.] for Longman, Hurst, Rees, Orme, and Brown, […]; and for Archibald Constable and Company, and John Ballantyne, […], pages 329–330