par ‧ tial ‧ ly /ˈpɑːʃ ə li $ ˈpɑːr-/ BrE AmE adverb formal
[ Word Family: noun : ↑ part , ↑ counterpart , ↑ parting , ↑ partition ; adverb : ↑ part , ↑ partially , ↑ partly ; adjective : ↑ partial , ↑ parting , ↑ part ; verb : ↑ part , ↑ partition ]
not completely SYN partly :
The operation was only partially successful.
Remember that you are partially responsible for their unhappiness.