The definition for retroactive is "effective as of a prior time or condition." Used in a sentence: The retroactive law made even past infractions punishable. The definition for exasperation is "the state of being irritated.", the definition for derelict is "Abandoned.", and the definition for iridescent is "Having a lustrous or attractivve quality."

The definition for regurgitate is "To pour out or throw back." Used in a sentence: The teacher wanted us to examine ideas rather than to regurgitate memorized facts. The definition for ploy is "a contrived plan.", the definition for epitaph is "Brief statement honoring a dead person.", and the definition for induce is "To influence or cause."

The definition for celebrated is "Widely known, respected." Used in a sentence: The fans waited for hours to catch a glimpse of the celebrated actress. The definition for straddle is "to favor opposing sides.", the definition for gruff is "Rough or stern in manner or speech.", and the definition for accentuate is "To emphasize."

The definition for accessible is "Easy to reach or to approach." Used in a sentence: The introduction to the complex novel was, thankfully, written in clear accessible language. The definition for sociable is "inclined to seek companionship.", the definition for mandate is "An official order or commission to do something.", and the definition for corrective is "Intended to correct."

The definition for foil is "One that enhances or underscores by contrast." Used in a sentence: The sweet cookie was a perfect foil to the sour lemon sorbet. The definition for meticulous is "extrememly careful regarding details.", the definition for precept is "A general rule of action.", and the definition for penurious is "Extrememly stingy."