> "unimpressed." That is not the "new" meaning under discussion That is pretty much (very close to) the new meaning under discussion: as the article says, the

> "unimpressed." That is not the "new" meaning under discussion That is pretty much (very close to) the new meaning under discussion: as the article says, the old meaning was “at a loss as to what to say, think, or do”, and the new meaning (started showing up in the early 20th century, though I only encountered it recently) is “unruffled, unconcerned”, which is close to your “unimpressed” (and close to the opposite of the earlier/standard meaning). (The upshot is that the word “nonplussed” is basically skunked now, and should not be used because readers will misunderstand/be unsure. Some discussion in this thread https://mathstodon.xyz/@dpiponi/111684566418809307 https://mathstodon.xyz/@dpiponi/111684566418809307 including examples of “enervated” and “livid”, and the observation that the etymology of “non plus” is similar to “I can't even”.)