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 interminable is "never ending, or seemingly endless.", the definition for aerate is "To supply with air.", and the definition for refurbish is "To brighten or freshen."

The definition for implausible is "Unbelievable." Used in a sentence: Claudia's implausible excuse failed to convince her teacher. The definition for incidental is "minor.", the definition for duplicity is "Deceptive thought, speech, or action.", and the definition for perception is "Capacity for seeing or understanding."

The definition for naive is "Lacking worldy wisdom." Used in a sentence: The naive Simon assumed that everyone was as simple and kind as he was. The definition for inauspicious is "not favorable.", the definition for extenuating is "Partially excusing.", and the definition for archetypal is "Characteristic of the original model or perfect example."

The definition for flagrant is "Noticeably offensive." Used in a sentence: The executive was fired for his flagrant abuse of the company expense account. The definition for stealth is "the act of moving secretly or unnoticed.", the definition for frugal is "Thrifty, cheap.", and the definition for equitable is "Fair and equal."

The definition for deferment is "The act of delaying." Used in a sentence: Sybil was frustrated by the deferment of her much anticipated vacation. The definition for authoritarian is "favoring absolute obedience to authority.", the definition for supple is "Flexible.", and the definition for stifle is "To repress or discourage."