Adjective
nontransparent (not comparable)
Not transparent; lacking transparence; opaque.
Synonyms: untransparent, intransparent
Agencies' billing practices were called into question earlier this year in a report from the ANA that highlighted a number of nontransparent practices. Source: Internet
While some of this rebate may be passed on to the insurer, pharmacy benefit managers keep a large — secret and nontransparent — amount for pure profit. Source: Internet