luck ‧ i ‧ ly S3 /ˈlʌkəli, ˈlʌkɪli/ BrE AmE adverb
[ Word Family: adjective : ↑ lucky ≠ ↑ unlucky , ↑ luckless ; noun : ↑ luck ; adverb : ↑ luckily ≠ ↑ unluckily ]
[sentence adverb] used to say that it is good that something happened or was done because if it had not, the situation would be unpleasant or difficult SYN fortunately :
Luckily the museum was not damaged by the earthquake.
luckily for somebody
Luckily for them, he braked in time.