(a.) Liable to error; fallible.

aberrant aberrative abroad adrift all abroad all off all wrong amiss askew astray at fault awry beside the mark circuitous circumforaneous corrupt deceptive defective delusive departing desultory deviant deviating deviational deviative deviatory devious digressive discursive distorted divagatory drifting errable erratic erring erroneous error-prone excursive fallacious fallible FALSE faultful faulty flawed flitting floating footloose footloose and fancy-free fugitive gadding gypsy-like gypsyish heretical heterodox illogical illusory indirect itinerant labyrinthine landloping liable to error mazy meandering migrational migratory misbehaving mischievous naughty nomad nomadic not right not true off off the track open to error out out-of-the-way peccant perverse perverted planetary rambling ranging roaming roving self-contradictory serpentine shifting snaky straggling stray straying strolling swerving traipsing transient transitory transmigratory turning twisting undirected unfactual unorthodox unproved unreliable untrue vagabond vagrant veering wandering wide winding wrong zigzag