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 penurious is "extrememly stingy.", the definition for appraise is "To evaluate the worth of.", and the definition for demeanor is "Behavior towards others."

The definition for interminable is "Never ending, or seemingly endless." Used in a sentence: The impatient Zoe found the longwinded lecture interminable. The definition for epistolary is "contained or carried on in letters.", the definition for deferment is "The act of delaying.", and the definition for moderate is "Tending toward the average."

The definition for procrastinate is "To put off intentionally." Used in a sentence: Yvonne's father urged, "Don't procrastinate. Clean your room right away." The definition for melee is "a tumultuous fight among several people.", the definition for beneficial is "Helpful.", and the definition for punctual is "On time."

The definition for colossal is "Immense, enormous." Used in a sentence: After pushing with all his might, Frank realized he could never move the colossal boulder. The definition for servile is "fearfully submissive.", the definition for repentant is "Feeling regret.", and the definition for avian is "Relating to birds."

The definition for incumbent is "Necessary as a duty or responsibility." Used in a sentence: It was incumbent on Jack to attend his father's retirement party. The definition for elate is "to fill with joy.", the definition for absolve is "To forgive; to free from guilt.", and the definition for supple is "Flexible."