honorary

Short definition from Wiktionary

Adjective

1. 1
   Given as an honor/honour, with no duties attached, and without payment.
2. 2
   Voluntary.
3. 3
   Unofficial; practically. Describes the holder of an unofficial position or title that is assigned as a special honor rather than by normal channels.

Noun

1. 1
   A person who holds an honorary appointment.
2. 2
   A kind of secret society that operates in name only, with membership given to honor some achievement.
3. 3
   An honorarium; a fee for services of no fixed value.