efficiently Antonyms

inefficiently appallingly annoyingly amateurishly awkwardly wastefully unfortunately inexpertly inadequately unacceptably atrociously inappropriately messily in vain voluminously unproductively shoddily unsatisfactorily unskillfully deficiently defectively crummily catastrophically amateurly wrongly statically faultily crudely cosmically clumsily badly awry awfully artlessly abysmally abominably futilely grimly rawly poorly onerously newly nastily inefficaciously ineffectually ineffectively incompetently incapably abjectly