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 cunning is "showing clever insight.", the definition for euphoria is "Feeling of great happiness.", and the definition for pallid is "Lacking color."

The definition for regale is "To amuse." Used in a sentence: My clever brother Jeffrey regaled the dinner guests with tales of his adventures. The definition for untenable is "not able to be defended.", the definition for gravity is "Importance, significance.", and the definition for aesthete is "Person having or affecting sensitivity to beauty."

The definition for preclude is "To rule out in advance." Used in a sentence: "Having cake now will preclude dessert later," said Amber's mother. The definition for buffer is "protective barrier.", the definition for drub is "To defeat decisively.", and the definition for fragile is "Delicate."

The definition for drub is "To defeat decisively." Used in a sentence: The powerful young boxer drubbed the longtime champion. The definition for iridescent is "having a lustrous or attractivve quality.", the definition for combustion is "Act of burning.", and the definition for stern is "Harsh, severe."

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 surplus is "excess.", the definition for implausible is "Unbelievable.", and the definition for extol is "To praise highly."