What is in a manner not to be approved of; improperly. [Obs. & R.] To diminish, by the authority of wise and knowing men, things unjustly and unprobably crept in. Strype called?

unprobably — In a manner not to be approved of; improperly. [Obs. & R.] To diminish, by the authority of wise and knowing men, things unjustly and unprobably crept in. Strype. (Webster's 1913.)

Sources