The definition for diffident is "Lacking self–confidence." Used in a sentence: The diffident student never raised her hand in class, even when she knew the answer. The definition for clairvoyance is "ability to see things beyond ordinary perception.", the definition for rail is "To scold in harsh language.", and the definition for solace is "Source of consolation."

The definition for apathetic is "Showing little or no emotion." Used in a sentence: Carmine was concerned about his usually cheerful brother's apathetic attitude. The definition for proximity is "closeness.", the definition for regale is "To amuse.", and the definition for placebo is "An inactive substance used in medical testing."

The definition for rancorous is "Marked by deep ill–will." Used in a sentence: The rancorous competition between the two chess clubs actually ended in a brawl. The definition for naive is "lacking worldy wisdom.", the definition for eloquent is "Fluent, expressive.", and the definition for stealth is "The act of moving secretly or unnoticed."

The definition for avian is "Relating to birds." Used in a sentence: The old man affectionately referred to pigeons as his "avian friends." The definition for untenable is "not able to be defended.", the definition for retroactive is "effective as of a prior time or condition.", and the definition for antidote is "Something that relieves or counteracts."

The definition for gravity is "Importance, significance." Used in a sentence: Understanding the gravity of his error, Ken offered his humblest apology. The definition for corrosive is "bitingly sarcastic.", the definition for frugal is "Thrifty, cheap.", and the definition for servile is "Fearfully submissive."