WordWeb Online

1. Concerned with or characterized by rigorous adherence to recognized forms (especially in religion or art)
   - formalistic, formalized
    
2. Given formal standing or endorsement; made official or legitimate by the observance of proper procedures
   - formalized

1. Make formal or official
   "We formalised the appointment and gave him a title"
   - formalize
    
2. Declare or make legally valid
   - validate, formalize

See also: formalisation [Brit], formalism, official

Type of: adjudge, authorise [Brit], authorize, clear, declare, hold, pass