The definition for implausible is "Unbelievable." Used in a sentence: Claudia's implausible excuse failed to convince her teacher. The definition for colossal is "immense, enormous.", the definition for advantageous is "Giving an advantage.", and the definition for rhapsody is "State of great happiness."

The definition for stern is "Harsh, severe." Used in a sentence: The stern principal canceled the prom after the seniors played a silly prank. The definition for elusive is "hard to grasp.", the definition for gruff is "Rough or stern in manner or speech.", and the definition for exalt is "To elevate by praise."

The definition for opportune is "Suitable or convenient." Used in a sentence: Quan stepped onto the platform at the most opportune time, just as the train pulled in. The definition for pallid is "lacking color.", the definition for servile is "Fearfully submissive.", and the definition for epitaph is "Brief statement honoring a dead person."

The definition for negate is "To make invalid." Used in a sentence: Paula negated Tiffany's argument by proving that her main premise was false. The definition for epitaph is "brief statement honoring a dead person.", the definition for civility is "Politeness.", and the definition for appraise is "To evaluate the worth of."

The definition for gargantuan is "Gigantic." Used in a sentence: The gargantuan monster towered over the ten–story bulding. The definition for raucous is "noisy, rowdy.", the definition for lenient is "Mild or tolerant.", and the definition for naive is "Lacking worldy wisdom."