Synonyms of legally

2 Syllables
piously, justly, fitly, rightly
3 Syllables
righteously, virtuously, benignly, duteously, lawfully, conceded, licitly, fittingly, warranted, decently, uprightly, rightfully
4 Syllables
equitably, respectably, impartially, authorized, befittingly, justifiably, charitably, dutifully, tolerantly, admittedly, allowably, enforcibly, permissibly, straightforwardly, deservedly, decorously
5 Syllables
beneficently, benevolently, evenhandedly, temperately, juridically
6 Syllables
constitutionally, legitimately