Get Underlined Text with Markdown

In GitHub markdown <ins>text</ins> works just fine.

Markdown doesn't have a defined syntax to underline text.

I guess this is because underlined text is hard to read, and that it's usually used for hyperlinks.

Another reason is that <u> tags are deprecated in XHTML and HTML5, so it would need to produce something like <span style="text-decoration:underline">this</span>. (IMHO, if <u> is deprecated, so should be <b> and <i>.) Note that Markdown produces <strong> and <em> instead of <b> and <i>, respectively, which explains the purpose of the text therein instead of its formatting. Formatting should be handled by stylesheets.

Update: The <u> element is no longer deprecated in HTML5.

The simple <u>some text</u> should work for you.

You can wrote **_bold and italic_** and re-style it to underlined text, like this:

strong>em,
em>strong,
b>i,
i>b {
    font-style:normal;
    font-weight:normal;
    text-decoration:underline;
}

In Jupyter Notebooks you can use Markdown in the following way for underlined text. This is similar to HTML5: (<u> and </u>).

<u>Underlined Words Here</u>

(this answer rewritten since the downvotes)

Just use the HTML <u> tag (recommended) or the <ins> tag inside your markdown for this.

The HTML tag <ins> is the HTML "insert tag", and is usually displayed as underlined. Hence, you can use it for underlining, as @BlackMagic recommends in his answer here. It is the opposite of the <del> delete tag.

But, I'd prefer and I recommend to just use the HTML <u> underline tag, since that's exactly what it's for:

<u>this is underlined text in HTML or markdown, which accepts HTML</u>

@zed_0xff also recommends using the <u> tag in his answer here.

You can try it out live online here: .