<?php
    $postnumcat = new wp_query (array(
    'post_status' => 'publish',
    'post_type' => 'post',
    'cat' => '-1',
    'posts_per_page' => '-1',
    ));
?>

<?php if($postnumcat->have_posts()) :
while($postnumcat->have_posts()) : $postnumcat->the_post(); ?>

<!-- Loop elements -->

<?php endwhile; endif; wp_reset_query(); ?>

<?php endwhile; wp_reset_postdata(); endif; wp_reset_query(); ?>

<?php endwhile; wp_reset_postdata(); endif; ?>