legitimately
🇺🇸
/lɪˈdʒɪtɪmətli/
🇬🇧
/lɪˈdʒɪtɪmətli/
in a way that is fair and reasonable
She has legitimately earned the right to be proud of her achievements.
in a way that follows the rules and laws
They have legitimately won the competition, so there's no need to question their victory.