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 epistolary is "contained or carried on in letters.", the definition for beneficial is "Helpful.", and the definition for periodic is "Occurring at regular intervals."

The definition for melee is "A tumultuous fight among several people." Used in a sentence: After the game, a melee broke out between fans of the opposing teams. The definition for accommodate is "to give consideration to.", the definition for unscrupulous is "Lacking principles.", and the definition for genial is "Sympathetic, friendly."

The definition for benevolent is "Kind, helpful." Used in a sentence: Sherman revealed his benevolent side when he offered to help Carter with his homework. The definition for plaudits is "enthusiastic approval.", the definition for demean is "To lower status.", and the definition for procrastinate is "To put off intentionally."

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 refurbish is "to brighten or freshen.", the definition for augment is "To make greater.", and the definition for revive is "To bring back to life."

The definition for euphoria is "Feeling of great happiness." Used in a sentence: Cassandra was overcome with euphoria when she met her long–lost sister. The definition for flaw is "an imperfection.", the definition for hedonism is "Belief that pleasure is the sole aim of life.", and the definition for camaraderie is "Spirit of friendship."