in name only
Also, only in name. Nominally, not actually. For example, He's the chief executive in name only; his vice-president makes all the decisions, or Theirs was a marriage only in name; they lived on different continents. [Late 1300s]
Words nearby in name only
in medias res,
in mem.,
in memoriam,
in memory of,
in mind,
in name only,
in no case,
in no time,
in no uncertain terms,
in nomine,
in nothing flat