'unimpressively-made' originates from the English prefix 'un-' meaning 'not,' combined with 'impressively,' which derives from 'impress,' and the suffix '-ly,' indicating manner, and 'made,' the past participle of 'make.'

'unimpressively' evolved from the word 'impressively' by adding the prefix 'un-' to denote the opposite meaning, and 'made' is the past participle form of 'make.'

Initially, 'impressively' meant 'in a manner that impresses,' but with the prefix 'un-,' it evolved to mean 'in a manner that does not impress.'