Get term by custom term meta and taxonomy

Try This:

$args = array(
'hide_empty' => false, // also retrieve terms which are not used yet
'meta_query' => array(
    array(
       'key'       => 'feature-group',
       'value'     => 'kitchen',
       'compare'   => 'LIKE'
    )
),
'taxonomy'  => 'category',
);
$terms = get_terms( $args );