没底 | méi dǐ | unsure / uncertain / unending | |
拿不定 | ná bu dìng | to be unsure | |
拿不准 | ná bù zhǔn | in doubt / unsure of sth / unable to decide / indecisive | |
心中无数 | xīn zhōng wú shù | to have no idea / to be unsure | |
吃不准 | chī bù zhǔn | to be unsure about a matter / to be uncertain / to be unable to make sense of sth |