a. Obs. exc. dial. Also 6 vaynfull. [f. VAIN a. + -FUL.] Vain, unprofitable, useless.
1509. Hawes, Past. Pleas., 55. They spende theyr time in vaynful vanyte.
1573. Tusser, Husb. (1878), 10. Though countrie be more painfull, and not so greedie gainfull, yet is it not so vainfull, in following fansies eie.
1888. in Elworthy, W. Som. Word-bk., 795.
Hence † Vainfully adv., in vain, vainly. Obs.
1509. Hawes, Conv. Swearers, 21. Vnto the man I gaue commaundement Not to take the name of thy God vaynfully.