select[readonly].select2-hidden-accessible + .select2-container {
    pointer-events: none;
    touch-action: none;
}

select[readonly].select2-hidden-accessible + .select2-container .select2-selection {
    background: #eee;
    box-shadow: none;
}

select[readonly].select2-hidden-accessible + .select2-container .select2-selection__arrow, select[readonly].select2-hidden-accessible + .select2-container .select2-selection__clear {
    display: none;
}