The definition for unscrupulous is "Lacking principles." Used in a sentence: The unscrupulous salesman was fired for lying to his customers. The definition for brandish is "to shake or wave menacingly.", the definition for appalling is "Inspiring dismay or disgust.", and the definition for impenitent is "Lacking remorse."

The definition for untenable is "Not able to be defended." Used in a sentence: Rashid made the untenable statement that George Washington was the second president of the United States. The definition for conduit is "means for transmitting or distributing.", the definition for unscrupulous is "Lacking principles.", and the definition for illuminate is "To make clear."

The definition for dubious is "Questionable." Used in a sentence: Karl found Kevin's claim that he was sick dubious, as he had just seen him playing football. The definition for indecorous is "in bad taste.", the definition for derivative is "Lacking originality.", and the definition for catastrophic is "Relating to extreme misfortune."

The definition for promote is "To contribute to the growth or prosperity of." Used in a sentence: The promote peace, the diplomat hosted a talk between the warring nations. The definition for pantomime is "telling a story through gestures.", the definition for derivative is "Lacking originality.", and the definition for corroborate is "To support with evidence."

The definition for periodic is "Occurring at regular intervals." Used in a sentence: The periodic innterruptions of the cuckoo clock prevented Li from concentrating. The definition for lurid is "causing horror, shocking.", the definition for perception is "Capacity for seeing or understanding.", and the definition for raucous is "Noisy, rowdy."