The definition for gruff is "Rough or stern in manner or speech." Used in a sentence: Heidi's grandfather was gruff, barking stern orders and hardly smiling. The definition for curtail is "to make less.", the definition for diffident is "Lacking self–confidence.", and the definition for servile is "Fearfully submissive."

The definition for flaw is "An imperfection." Used in a sentence: The otherwise perfect diamond had a tiny flaw that reduced its value. The definition for fickle is "lacking constancy, changeable.", the definition for flagrant is "Noticeably offensive.", and the definition for rancorous is "Marked by deep ill–will."

The definition for conduit is "Means for transmitting or distributing." Used in a sentence: Jason, a notorious gossip, was a conduit for information about his friends. The definition for cunning is "showing clever insight.", the definition for corrective is "Intended to correct.", and the definition for abate is "Become less in amount or intensity."

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 polarize is "to break up into opposing groups.", the definition for placebo is "An inactive substance used in medical testing.", and the definition for deferment is "The act of delaying."

The definition for incidental is "Minor." Used in a sentence: The accountant advised Justine not to report her incidental expenses. The definition for inflammatory is "tending to excite anger.", the definition for incongruous is "Not harmonious, incompatible.", and the definition for turpitude is "Essential baseness, depravity."