Weasel words

Weasel words are phrasing that is deliberately vague in order to obscure the truth, present a half-truth, make a statement sound more authoritative than it is, or make a statement sound authoritative while actually rendering it unfalsifiable. Examples include some uses of the passive voice ("Mistakes were made") and vague attributions such as "Some experts say...," "Research shows...," and "It is widely believed...."