“Deciding by oneself” in Japanese
Short answer
Deciding by oneself in Japanese is “独り決め” (hitorigime). Full meaning: deciding by oneself; taking it for granted (that ...), assuming.
Other ways to say “Deciding by oneself” in Japanese
獨ぎめ
hitorigime deciding by oneself; taking it for granted (that ...), assuming
ひとり決め
hitorigime deciding by oneself; taking it for granted (that ...), assuming
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