1. (a.) Nor responsible; unreliable; untrustworthy\.

2. (a.) Not to be trusted; unreliable.

adrift afloat alternating amorphous capricious carefree careless changeable changeful chartered desultory deviable devil-may-care disobedient dizzy eccentric erratic excepted excused exempt exempted fast and loose favored feckless fickle fitful flickering flighty flitting fluctuating fly-by-night freakish giddy headstrong heady immune impetuous impulsive incautious inconsistent inconstant indecisive ineffectual infirm insubordinate irregular irresolute lawless let off licensed licentious mazy mercurial moody mutinous permitted privileged rambling rampant rash reckless reinless released restless roving scatterbrained self-willed shapeless shifting shifty shuffling spared spasmodic spineless trustless unaccountable unanswerable unbridled uncertain unchecked uncontrolled uncurbed undependable undisciplined unfaithworthy unfixed ungoverned unliable unpredictable unreined unreliable unrestrained unruly unsettled unstable unstable as water unstaid unsteadfast unsteady unsubject unsure untrustworthy untrusty vacillating vagrant variable vicissitudinary vicissitudinous volatile wandering wanton wavering wavery wavy wayward weak whimsical wild wildcat willful wishy-washy