The definition for iridescent is "Having a lustrous or attractivve quality." Used in a sentence: The movie star's iridescent presence charmed even the hardened reporter. The definition for preclude is "to rule out in advance.", the definition for egotist is "Self–important person.", and the definition for perception is "Capacity for seeing or understanding."

The definition for eloquent is "Fluent, expressive." Used in a sentence: Kim, an eloquent speaker, was the best choice to make the presentation for the group. The definition for turmoil is "extreme confusion, agitation.", the definition for drab is "Dull, monotonous.", and the definition for induce is "To influence or cause."

The definition for inviolable is "Secure from assault of trespass." Used in a sentence: Situated on a mountain, with sixteen–foot walls, the castle was inviolable. The definition for compulsion is "an irresistible impulse.", the definition for demeanor is "Behavior towards others.", and the definition for fidelity is "State of being faithful."

The definition for ethical is "Conforming to accepted standards." Used in a sentence: Mary did the ethical thing and turned in the diamond necklace she found. The definition for indecorous is "in bad taste.", the definition for finite is "Having definite limits.", and the definition for naive is "Lacking worldy wisdom."

The definition for insinuate is "To suggest indirectly." Used in a sentence: Sinead, who did not like confrontation, insinuated that Beth was lying. The definition for catastrophic is "relating to extreme misfortune.", the definition for unscrupulous is "Lacking principles.", and the definition for curtail is "To make less."