dubious
DOO-bee-usadjMeaning doubtful; also, possibly dishonest
Memory hook DOO-bee-us = DOUBT-ious. A sign promises shoes that let you fly for five dollars. Grandpa Gus squints at it, full of doubt, and the seller looks shady too. Gus is dubious.
Ivy was dubious about her brother’s promise to clean the kitchen by himself.
In context The deal sounded too good to be true, and it came from a company with a dubious record: three of its last four products had been recalled.
Similar doubtful, questionable, suspicious, uncertain
Opposite certain, trustworthy, reliable
From Latin dubius, “doubtful, wavering.”