Baron Adrian is a proper noun and therefore cannot have synonyms in the strictest sense. However, the title "baron" can be replaced with similar noble titles such as duke, earl, viscount or marquess. Additionally, the surname "Adrian" can be substituted with other surnames of similar meaning or sound, such as Andrews, Atkins or Atkinson. Alternatively, descriptors of Baron Adrian's characteristics or accomplishments could be used in lieu of his name, such as "the philanthropic nobleman" or "the visionary baron". However, it is important to note that each individual's name and title holds unique significance and should be respected accordingly.