taxonomy_term
$tax_query = array( array( 'taxonomy' => 'taxonomy_term', 'terms' => array( '12', '12', '14' ), 'operator' => 'NOT IN', ), );
$tax_query = array( array( 'taxonomy' => 'taxonomy_term', 'terms' => array( '12', '12', '14' ), 'operator' => 'NOT IN', ), );