A mild, inoffensive expression that is substituted for one that is often considered harsh or offensive. “To pass away” is a euphemism for “to die.”

Stated or appearing to be true, but not necessarily so. Being such in appearance, plausible rather than demonstrably true or real. “The ostensible purpose of the trip was for business.”

 Not straightforward or candid; insincere or calculating.  “It was disingenuous of her to claim she had no financial interest in the company.”

Given to or marked by deliberate deceptiveness in behavior or speech. “They warned him not to trust the duplicitous telemarketer.”

Expressing contempt or ridicule; mocking or scornful. “A derisive laugh.”

Remarkably or impressively great in extent, size, or degree. “Her prodigious sales performance resulted in a promotion.”

Stubborn, often defiant of authority; difficult to manage or control. “After months of recalcitrant behavior, the employee was terminated.”

Deviating from what is standard, normal, or expected. “The marketing department could not explain the anomalous sales performance.”

1. Quarrelsome or combative in nature; belligerent. 2. Expressing an argument or opinion very forcefully. “Rather than maintaining a calm demeanor, his boss was quite pugnacious.”

Of or relating to the pleasant aspects of country life. “He retired to a more bucolic life on his farm.”