weaselly

noun pl. weasels or weasel

1. any of various agile musteline carnivores (esp. genus Mustela) with a long, slender body, short legs, and a long, bushy tail: they feed on rats, mice, birds, eggs, etc. and are worldwide
2. a sly, cunning, or sneaky person

intransitive verb

1. to use weasel words
2. Informal to avoid or evade a commitment or responsibility: with out