miniscule
min·is·cule ˈmi-nə-ˌskyül 
disputed spelling variant of minuscule
Is it minuscule or miniscule?: Usage Guide
The adjective minuscule is etymologically related to minus, but associations with mini- have produced the spelling variant miniscule. This variant dates to the end of the 19th century, and it now occurs commonly in published writing, but it continues to be widely regarded as an error.