1775. Ash, Unweariable, not weariable.
1856. Ruskin, Mod. Paint., III. IV. x. § 14. The imagination is eminently a weariable faculty, eminently delicate, and incapable of bearing fatigue.
1904. E. Wake Cook, in Contemp. Rev., Oct., 546. He [Lord Leighton] had consummate knowledge to guide him, and could judge up to a certain point with lightning rapidity, and with the minimum of æsthetic strain; while most critics lack this profound knowledge and have to depend on a mere smattering and on weariable taste.
Hence Weariableness.
1904. E. Wake Cook, in Contemp. Rev., Oct., 540. The sensitiveness, the weariableness of the æsthetic faculties which I have been illustrating causes, in the Art-world, the demand for novelty to outrun the legitimate supply.