Adverb
in an unfaithful undependable unreliable manner
Source: WordNetIn a banana republic, one might slip on a banana peel but things do work - now and then for the people, albeit inefficiently and unreliably. George Ayittey
This caused many issues with incompatibility, where a true IBM-compatible third-party card (designed for an 8 MHz or 4.77 MHz bus) might not work in a higher speed system (or even worse, would work unreliably). Source: Internet
Other fossils have been found, but many are either unreliably dated or else unreliably identified. Source: Internet
The gross figures may mislead slightly, as most of the German troops fighting on the side of the French fought at best unreliably and stood on the verge of defecting to the Allies. Source: Internet