“Preferably” in Japanese
Short answer
Preferably in Japanese is “いっそ” (isso). Full meaning: rather, sooner, preferably, might as well, just; on the contrary, if anything.
Other ways to say “Preferably” in Japanese
成るべくなら
narubekunara if possible, preferably, if circumstances allow
一層の事
issounokoto rather, sooner, preferably
いっその事
issonokoto rather, sooner, preferably
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