“Properly speaking” in Japanese
Short answer
Properly speaking in Japanese is “本来なら” (honrainara). Full meaning: by all rights, properly speaking, legally speaking.
Other ways to say “Properly speaking” in Japanese
本来であれば
honraideareba by all rights, legally speaking, properly speaking
本来から言えば
honraikaraieba by all rights, legally speaking, properly speaking
Looking for the other direction? Search any Japanese word in the Nihoner lexicon, or practise what you have learned in the learning games.