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 catastrophic is "relating to extreme misfortune.", the definition for punctual is "On time.", and the definition for duplicity is "Deceptive thought, speech, or action."

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 advantageous is "giving an advantage.", the definition for corrective is "Intended to correct.", and the definition for redouble is "To make twice as great."

The definition for melodious is "Having a pleasing melody." Used in a sentence: The melodious sounds of the symphony soothed Tim after his trying day. The definition for colossal is "immense, enormous.", the definition for incisive is "Impressively direct and decisive.", and the definition for raspy is "rough, grating."

The definition for prudent is "Marked by wisdom, shrewd." Used in a sentence: Manny was happy she followed Greg's prudent advice to study, as the test was difficult. The definition for gargantuan is "gigantic.", the definition for futile is "Without purpose, completely ineffective.", and the definition for distortion is "The act of twisting out of shape."

The definition for repentant is "Feeling regret." Used in a sentence: The repentant Dana admitted to cheating on the test. The definition for commemorate is "to mark by a ceremony.", the definition for corrosive is "Bitingly sarcastic.", and the definition for exception is "A case to which the rule does not apply."