I need to create some kind of title style that must not appear into the TOC and must looks like this, maybe more close to the paragraph.

![enter image description here](https://i.stack.imgur.com/8lVsq.png)

I try this, 

```
\newcommand{\littt}[1]{
    \begin{flushleft}
    \textbf{#1}
    \end{flushleft}
    \vspace{-1cm}
}

```

but sometimes looks perfect and sometimes appears over the text.