unsure :: ZWBit Chinese Character and PinYin Dictionary

ZWBit汉字-拼音字典

Pinyin Simplified Chinese	English	Traditional Chinese
xīnzhōngwúshù 心中无数^字	to have no idea; to be unsure;	心中無數^字
nábùzhǔn 拿不准^字	in doubt; unsure of sth; unable to decide; indecisive;	拿不準^字
méidǐ 没底^字	unsure; uncertain; unending;	沒底^字