Exclude specific slug in ‘get_terms’

I have a custom taxonomy “role” for my custom post type “People”.

When listing the roles, is there a way to exclude roles based on slug and not ID via get_terms function?

I ask because I’m running a multisite and a few websites have the same IDs as the ones I’d like to exclude.

Right now I have:

<?php
$roles = get_terms(
    'role', array(
    'orderby'       => 'ID',
    'order'         => 'ASC',
    'hide_empty'    => true,
    'exclude'       => array('58', '63', '833'),
    ));
$count_roles = count($roles);
if ( $count_roles > 0 ) : ?>
     //do stuff
<?php endif;?>

The slugs I’d like to exclude are: 'slug' => ['graduate', 'job-market-candidate', 'graduate-student','research'], but I don’t know where to fit this line, if anywhere.

Any help is appreciated!

The get_terms() (see docs) function accepts the same args as WP_Term_Query(see docs)
You have to get those terms Ids first and then pass it to the exclude arg:

// default to not exclude terms
$ids_to_exclude = array();
$get_terms_to_exclude =  get_terms(
    array(
        'fields'  => 'ids',
        'slug'    => array( 
            'graduate', 
            'job-market-candidate', 
            'graduate-student',
            'research' ),
        'taxonomy' => 'role',
    )
);
if( !is_wp_error( $get_terms_to_exclude ) && count($get_terms_to_exclude) > 0){
    $ids_to_exclude = $get_terms_to_exclude; 
}
$roles = get_terms(
    array(
        'orderby'    => 'ID',
        'order'      => 'ASC',
        'hide_empty' => true,
        'exclude'    => $ids_to_exclude,
        'taxonomy'   => 'role',
    )
);

$count_roles = count($roles);

if ( $count_roles > 0 ) : ?>
     //do stuff
<?php endif;?>