摇摆不定
yáo​bǎi​bù​dìng

swaying

yáo​bǎi​bù​dìng swaying
  1. 摇摆 搖擺 yáo​bǎi
    to sway
    To sway; to swing; to rock back and forth; to wobble
  2. 不定 bù​dìng adjective
    indefinite
    not fixed or certain; indeterminate; wandering or shifting; without a fixed result or settlement

yáo​bǎi​bù​dìng indecisive
  1. 摇摆 搖擺 yáo​bǎi
    to waver
    To waver between different opinions or positions; to be indecisive or unsteady in one's stance
  2. 不定 bù​dìng
    not sure
    uncertain or not sure; often used with question words to mean 'it's not clear (who/what/when...)'