unstablest

ambiguous borderline capricious changeable dizzy dubious erratic fickle fitful fluctuating giddy inconsistent inconstant insecure irrational lubricious mercurial mobile movable moving mutable not fixed precarious rickety risky rocky sensitive shaky shifty slippery suspect teetering temperamental ticklish tricky uncertain unpredictable unsettled unsteady untrustworthy vacillating variable volatile wavering weaving wiggly wobbly

stable steady strong

ambiguous changeable erratic fickle insecure irrational precarious risky rocky sensitive shaky slippery ticklish tricky uncertain unpredictable unsettled unsteady volatile weak wobbly

borderline capricious dizzy dubious fitful fluctuating giddy inconsistent inconstant lubricious mercurial mobile movable moving mutable not fixed rickety shifty suspect teetering temperamental untrustworthy vacillating variable wavering weaving wiggly

certain clear confident constant definite dependable easy firm guarded happy predictable protected reliable safe secure sound stable steady strong sure unchanging unshaky