Synonyms of yoyo

1 Syllable
flip, gay, mad, buoyant
2 Syllables
fickle, sprightly, flaky, yo-yo, short-fuse, gaga, ticklish
3 Syllables
movable, erratic, unstable, inconstant, variable, capricious, lubricious, fluctuating, mobile, quicksilver, spirited, resilient, lighthearted, changeable, lively, up-and-down, elastic
4 Syllables
impulsive, volatile, effervescent, irregular, bubbleheaded, expansive
5 Syllables
unpredictable, irrepressible