in name only

名ばかり、名目的、名義上、名前だけ

in name only の類語

so-called, nominally, nominal, would-be, self-called, would be, apparently, in name, claimed, titular, so called, seemingly, self-styled, falsely, quasi, ostensibly, formal, alleged, self-christened, nominative, pretended, artificially, hypocritical, purported, professed, diminutive, avowed, honorific, synthetically, erroneously, plausibly, unnaturally, ostensible, specious, spuriously, byname, soi-disant, untruly

in name only の言い換えを探すには

in name only（名ばかり）の類語・言い換え（パラフレーズ）を、日本語訳つきで関連度順に並べています。英作文の語彙を増やしたいとき、長文読解で本文と選択肢の言い換えを見抜きたいときに使えます。