unreliable

Tests for the disease are unreliable, and can lead to men being treated for a slow-growing cancer that is not going to cause them any harm.

Corruption remains rampant among state and municipal police, prosecutors and judges in Mexico, often rendering them unreliable partners.

Increased oil exports to Asia would reduce Canada's economic dependence on an unreliable United States, he said.

Tests for the disease are unreliable, and can lead to men being treated for a slow-growing cancer that isn't going to cause them any harm.

But when the new site changed the radar's colour scale, long-time users were left scratching their heads as their "hard-won intuition for reading storm intensity became unreliable overnight".