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 colossal is "immense, enormous.", the definition for heinous is "Shockingly evil.", and the definition for periodic is "Occurring at regular intervals."

The definition for appraise is "To evaluate the worth of." Used in a sentence: Simone, an expert in African sculpture, was asked to appraise the ambassador's collection of masks. The definition for elate is "to fill with joy.", the definition for elusive is "Hard to grasp.", and the definition for surplus is "Excess."

The definition for frugal is "Thrifty, cheap." Used in a sentence: The frugal shopper only bought items that were on sale. The definition for defiant is "showing bold resistance.", the definition for revive is "To bring back to life.", and the definition for flagrant is "Noticeably offensive."

The definition for proximity is "Closeness." Used in a sentence: The proximity of Tia's house to school meant that she could walk there in five minutes. The definition for turmoil is "extreme confusion, agitation.", the definition for placebo is "An inactive substance used in medical testing.", and the definition for appalling is "Inspiring dismay or disgust."

The definition for fickle is "Lacking constancy, changeable." Used in a sentence: The fickle Senji had a new best friend every month. The definition for prudent is "marked by wisdom, shrewd.", the definition for archetypal is "Characteristic of the original model or perfect example.", and the definition for exasperation is "The state of being irritated."