Text goes beyond paper marge

Question

my problem is best illustrated in the picture below: the text won't center between the paper marge. I've used some commands from related problems on this website but nothing happens when I run it. The text remains as such:

\documentclass[11pt]{article}
\usepackage[a4paper]{geometry}
\usepackage[none]{hyphenat}

\begin{document}

\begin{center}
  { \textbf{\underline{Random text to show that the right side of the text goes beyond the paper marge and don't know how to fix this} }}
\end{center} 

\end{document}