(pronounced nahn-PLUHST)
We just love this word, which, by the way, can also be spelled with one “s”: nonplused. This adjective means to be bewildered, perplexed, surprised or confused — i.e., at a loss to how to respond or think.
Example: When Jesse’s client told him that she had declared bankruptcy, he was completed nonplussed as she had just authorized his firm to purchase over $100,000 worth of furniture and accessories.