ad hockery

or ad hoc·er·y

[ ad hok-uh-ree ]
/ æd ˈhɒk ə ri /

noun

reliance on temporary solutions rather than on consistent, long-term plans.
Also ad hoc·ism [ad hok-iz-uh m] /æd ˈhɒk ɪz əm/.

Origin of ad hockery

First recorded in 1890–1900; ad hoc + -ery