seriously
🇺🇸
/ˈsɪriəsli/
🇬🇧
/ˈsɪəriəsli/
in a way that shows you are not joking or being careless
I'm seriously considering a new career path.
私は真剣に新しいキャリアの道を考えております。
to show that you are now being serious after not being serious before
Seriously, I don't think that's a good idea.
真剣に言って、それは良い考えではないと思います。
to a high degree or extent
He's seriously talented.
彼は本当に才能があります。