资料来源 : pyDict

有名无实地,名义上地,名称上

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Nominally \Nom"i*nal*ly\, adv.
   In a nominal manner; by name; in name only; not in reality.
   --Burke.

资料来源 : WordNet®

nominally
     adv : in name only; "nominally he is the boss"