Given that this is something people frequently feel strongly about, there are important subcategories. 
&quot;Not religious&quot; can mean passive&#x2F;apathetic (&quot;don&#x27;t care&quot;), or active&#x2F;idealogical (&quot;There IS no god!&quot;)<p>One can be mildly or very religious without following any rituals or having anything to attend<p>Spiritual may or may not fit into any category because of the vague allusion to &quot;Standard Definition&quot;. This may imply author only means large historical&#x2F;traditional&#x2F;formalized religions (in which case &quot;Spiritual&quot; or &quot;New Age&quot; would go into Not religious&quot;), or religion is meant to be encompassing and inclusive (in which case they would fit into one of the other categories).