adv. Obs. [UN-1 11. Cf. prec.] Immodestly.
1382. Wyclif, Pref. Ep. St. Jerome, i. More wilnyng other mennus thingis shamfastli to lernen, than his owne vnshamfastli to prece forth.
c. 1440. Promp. Parv., 367/1. Onschamefastly, inpudenter.
1561. T. Hoby, trans. Castigliones Courtyer, Zz 2. Not to loue promotions so, nor vnshamefastlye to begg any office.
1580. Lupton, Sivqila, 63. I am sure a greate sorte woulde not so vnshamefastly, and so commonly vse that filthy vice.
1632. Sherwood, Unshamefastly, eshontément.