adv. [UN-1 11.] Without any ground or basis.
1550. Bale, Apol., 84 b. That putteth he in here, vngroundedly, doubtfully, hypocritically, and vtterly agaynst hymselfe.
1593. Nashe, Strange Newes, B j. They that are vngroundedly offended at any thing in Pierce Pennilesse.
1624. Bedell, Lett., iii. 59. Many things there be in Poperie to my conceit weakely and vngroundedly affirmed.
1692. Ray, Disc., III. ix. 343. The event shews how ungroundedly and erroneously. [Also in recent use.]