Forcible-feeble

a. [ From Feeble, a character in the Second Part of Shakespeare's “King Henry IV., ” to whom Falstaff derisively applies the epithet “forcible.” ] Seemingly vigorous, but really weak or insipid. [ 1913 Webster ]

He [ Prof. Ayton ] would purge his book of much offensive matter, if he struck out epithets which are in the bad taste of the forcible-feeble school. N. Brit. Review. [ 1913 Webster ]