The definition for opportune is "Suitable or convenient." Used in a sentence: Quan stepped onto the platform at the most opportune time, just as the train pulled in. The definition for rail is "to scold in harsh language.", the definition for belated is "Past the normal or proper time.", and the definition for stealth is "The act of moving secretly or unnoticed."

The definition for obnoxious is "Highly offensive." Used in a sentence: The manager asked the obnoxious diner to leave the restaurant. The definition for opportune is "suitable or convenient.", the definition for incongruous is "Not harmonious, incompatible.", and the definition for negate is "To make invalid."

The definition for unscrupulous is "Lacking principles." Used in a sentence: The unscrupulous salesman was fired for lying to his customers. The definition for eloquent is "fluent, expressive.", the definition for precept is "A general rule of action.", and the definition for gruff is "Rough or stern in manner or speech."

The definition for facade is "false or superficial appearance." Used in a sentence: Emily's smile is just a facade masking her broken heart. The definition for anthology is "a collection of selected literary pieces.", the definition for facade is "false or superficial appearance.", and the definition for corrosive is "Bitingly sarcastic."

The definition for commemorate is "To mark by a ceremony." Used in a sentence: Each year, the Franklins commemorate their anniversary by visiting the site of their first date. The definition for finite is "having definite limits.", the definition for salvage is "To save from ruin.", and the definition for melee is "A tumultuous fight among several people."