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 beneficial is "helpful.", the definition for melodious is "Having a pleasing melody.", and the definition for incisive is "Impressively direct and decisive."

The definition for raucous is "Noisy, rowdy." Used in a sentence: Serena, who preferred quiet conversation, left the rancous party. The definition for incumbent is "necessary as a duty or responsibility.", the definition for recrimination is "A retaliatory accusation.", and the definition for corrective is "Intended to correct."

The definition for comparable is "Similar, equivalent." Used in a sentence: Helen will only accept something of comparable value for her ticket to the concert. The definition for demeanor is "behavior towards others.", the definition for stifle is "To repress or discourage.", and the definition for indecorous is "In bad taste."

The definition for manifest is "Obvious." Used in a sentence: James finally made his affection manifest when he handed Jessica a red rose. The definition for buffer is "protective barrier.", the definition for beneficial is "Helpful.", and the definition for benefactor is "One who offers financial help."

The definition for periodic is "Occurring at regular intervals." Used in a sentence: The periodic innterruptions of the cuckoo clock prevented Li from concentrating. The definition for demean is "to lower status.", the definition for salvage is "To save from ruin.", and the definition for iridescent is "Having a lustrous or attractivve quality."