perfectly

1 without any flaws or errors you did that handspring perfectly on your first try Synonyms faultlessly, flawlessly, ideally, immaculately, impeccably, pat Related Words excellently, fabulously, finely, grandly, greatly, marvelously, superbly, superiorly, superlatively, terrifically; exceptionally, fancily, specially Phrases to a nicety, to a T, to a turn, to the nines Near Antonyms deficiently, inadequately, incompletely, insufficiently; fallibly; atrociously, execrably, wretchedly Antonyms amiss, badly, defectively, faultily, imperfectly

2 to a full extent or degree you know perfectly well what I'm talking about, so don't pretend Synonyms all, all of, all over, altogether, clean, completely, dead, enough, entire, entirely, even, exactly, fast, flat, full, heartily, out, fully, plumb [chiefly dialect], quite, soundly, thoroughly, through and through, totally, utterly, well, wholly, wideRelated Words absolutely, categorically, cold, downright, hands down, plain, stone, stone-cold, unqualifiedly; basically, by and large, chiefly, generally, largely, mainly, more or less, mostly, overall, predominantly, predominately, primarily, principally, substantially; abundantly, copiously, generously, greatlyNear Antonyms barely, hardly, just, kind of, marginally, minimally, scarcely, slightly, superficially; approximately, roughly, somewhatAntonyms half, halfway, incompletely, part, partially, partly