<form method="post" action="/post/" autocomplete="off">
	<!-- The entire form has autocomplete disabled. -->
</form>

<!-- or you turn it off for just one input -->
<input type="text" autocomplete="off">

<form method="post" action="/form" autocomplete="off">
[…]
</form>

<input type="text" name="foo" autocomplete="off" />

<form autocomplete="off" method="post" action="">
    <input autocomplete="false" name="hidden" type="text" style="display:none;">
    ...

autocomplete="off"

<input autocomplete="off"></input>