adj. resembling a convulsion in being sudden and violent; "a convulsive rage"; "convulsive laughter"

adj. affected by involuntary jerky muscular contractions; resembling a spasm; "convulsive motions"; "his body made a spasmodic jerk"; "spastic movements"

adj. marked by erratic changeableness in affections or attachments; "fickle friends"; "a flirt's volatile affections"

adj. liable to sudden unpredictable change; "erratic behavior"; "fickle weather"; "mercurial twists of temperament"; "a quicksilver character, cool and willful at one moment, utterly fragile the next"

adj. (used of a device) designed so that a property (as e.g. light) can be varied; "a variable capacitor"; "variable filters in front of the mercury xenon lights"

adj. not to be trusted

adj. not worthy of reliance or trust; "in the early 1950s computers were large and expensive and unreliable"; "an undependable assistant"

adj. lacking stability or fixity or firmness; "unstable political conditions"; "the tower proved to be unstable in the high wind"; "an unstable world economy"

adj. not worthy of trust or belief; "an untrustworthy person"

adj. such that alteration is possible; having a marked tendency to change; "changeable behavior"; "changeable moods"; "changeable prices"

adj. changeable or inconstant; "versatile moods"

adj. extremely violent; "a knock-down-and-drag-out fight"

adj. marked by extreme and violent energy; "a ferocious beating"; "fierce fighting"; "a furious battle"

adj. violent and lawless; "the more ruffianly element"; "tough street gangs"

adj. characteristic of someone who employs terrorism (especially as a political weapon); "terrorist activity"; "terrorist state"

adj. characterized by unrest or disorder or insubordination; "effects of the struggle will be violent and disruptive"; "riotous times"; "these troubled areas"; "the tumultuous years of his administration"; "a turbulent and unruly childhood"

adj. (of the voice) quivering as from weakness or fear; "the old lady's quavering voice"; "spoke timidly in a tremulous voice"

adj. unsteady in gait as from infirmity or old age; "a tottering skeleton of a horse"; "a tottery old man"

adj. unsteady in speech or action

adj. shining unsteadily

adj. having unpredictable ups and downs; "fluctuating prices"

adj. so surprisingly impressive as to stun or overwhelm; "such an enormous response was astonishing"; "an astounding achievement"; "the amount of money required was staggering"; "suffered a staggering defeat"; "the figure inside the boucle dress was stupefying"

adj. having a slight and rapid trembling motion; "palpitant movements rather than violent eruptions"; "my palpitating heart"

adj. vibrating slightly and irregularly; as e.g. with fear or cold or like the leaves of an aspen in a breeze; "a quaking bog"; "the quaking child asked for more"; "quivering leaves of a poplar tree"; "with shaking knees"; "seemed shaky on her feet"; "sparkling light from the shivering crystals of the chandelier"; "trembling hands"

adj. "a quaking bog"

adj. (of sound) fluctuating unsteadily; "a low-pitched wobbling sound"