| 变幻莫测 | biàn huàn mò cè | to change unpredictably / unpredictable / erratic / treacherous | ![]() |
| 反复无常 | fǎn fù wú cháng | unstable / erratic / changeable / fickle | ![]() |
| 疯疯癫癫 | fēng feng diān diān | deranged / erratic | ![]() |
| 飘忽不定 | piāo hū bù dìng | to drift without a resting place (idiom) / roving / errant / vagrant / erratic | ![]() |
