Using the values for \leftmargini, \leftmarginii, \leftmarginiii, \labelsep and \labelwidth`I am not sure if this is what you can define commands with appropriate negative spacing; a little examplewant:
\documentclass{article} \newcommand\outone{\par\hspace*{\dimexpr-\leftmargini+\labelsep-\labelwidth\relax}} \newcommand\outtwo{\par\hspace*{\dimexpr-\leftmargini-\leftmarginii+\labelsep-\labelwidth\relax}} \newcommand\outthree{\par\hspace*\usepackage{\dimexpr-\leftmargini-\leftmarginii-\leftmarginiii+\labelsep-\labelwidth\relax}enumitem} \begin{document} \begin{enumerate} \item first level \begin{enumerate} \item second level \outone Text outside of enumerate \begin{enumerate} \item third level \outone Text outside\item ofthird enumeratelevel \outtwo Text outside of enumerate \begin{enumerate} \item fourth level \outone \hspace*{\dimexpr-\leftmargini+\labelsep-\labelwidth\relax} Text outside of enumerate \outtwo \hspace*{\dimexpr-\leftmargini-\leftmarginii+\labelsep-\labelwidth\relax} Text outside of enumerate \outthree \hspace*{\dimexpr-\leftmargini-\leftmarginii-\leftmarginiii+\labelsep-\labelwidth\relax} Text outside of enumerate \end{enumerate} \end{enumerate} \end{enumerate} \end{enumerate} \end{document} 
