The definition for implausible is "Unbelievable." Used in a sentence: Claudia's implausible excuse failed to convince her teacher. The definition for revoke is "to cancel by taking back.", the definition for combustion is "Act of burning.", and the definition for fickle is "Lacking constancy, changeable."

The definition for untenable is "Not able to be defended." Used in a sentence: Rashid made the untenable statement that George Washington was the second president of the United States. The definition for rail is "to scold in harsh language.", the definition for inflammatory is "Tending to excite anger.", and the definition for punctual is "On time."

The definition for drab is "Dull, monotonous." Used in a sentence: The drab winter scene made Keisha long for the vibrant colors of spring. The definition for negate is "to make invalid.", the definition for redouble is "To make twice as great.", and the definition for facade is "false or superficial appearance."

The definition for condone is "To treat as acceptable." Used in a sentence: Crystal condoned her friend's late arrival because she found it hard to be on time herself. The definition for prune is "to reduce by removing excess.", the definition for euphoria is "Feeling of great happiness.", and the definition for meticulous is "Extrememly careful regarding details."

The definition for exception is "A case to which the rule does not apply." Used in a sentence: The teacher made an exception and let Gina eat her snack in class. The definition for redouble is "to make twice as great.", the definition for elusive is "Hard to grasp.", and the definition for prudent is "Marked by wisdom, shrewd."