From imperterrito + -mente. <span class="searchmatch">imperterritamente</span> regardlessly, unperturbedly, undismayedly...
regardless, unperturbed, undismayed Synonyms: impassibile, ostinato <span class="searchmatch">imperterritamente</span> imperterrito in Treccani.it – Vocabolario Treccani on line, Istituto...