plussed

== English == === Etymology 1 === See plus. ==== Verb ==== plussed simple past and past participle of plus ==== Adjective ==== plussed (not comparable) (computing, informal) Containing a plus sign. === Etymology 2 === A back-formation from nonplussed; see that entry for more on its own sense development. ==== Adjective ==== plussed (not comparable) (informal) Calm, collected and unconfused; not nonplussed (“bewildered, unsure how to react”). (Can we date this quote?), Gravitas, Punctilio, Rectitude & Pippy Bags, Frank Key, page 313: Elhugavamp stopped up her ears with cotton wool and continued to smoke her acrid Serbian cigarillo, looking quite plussed and nonchalant, unlike me, for I was nonplussed and chalant, and innocent of cotton wool ear-stoppers. (informal) Bothered, fazed, vexed, or concerned; not nonplussed (“unfazed, unaffected, unimpressed”).