ambiguus

Etymology
From.

Adjective

 * 1) going two ways, hither and thither, moving from side-to-side
 * 2) hybrid
 * 3) changing, fluctuating, wavering
 * 4) uncertain, doubtful, undecided, indecisive
 * 5)  obscure, ambiguous
 * 6)  wavering, not to be relied on, untrustworthy, unreliable, treacherous