iffy
US
UK iffy adj: informal (not certain) (非正式用语)
SC 不一定的 bú yí dìng de
Mark feels iffy about driving at night without his glasses.
iffy adj: informal (questionable) (非正式用语)
SC 可疑的，有问题的 kě yí de ，yǒu wèn tí de
Those numbers are iffy. Are you sure you included all the expenses?