lamentablementeadverb
Lamentablemente means unfortunately in English. It is an adverb.
- unfortunately
Lamentablemente, no es posible.
Regretfully it is not possible.
Lamentablemente, él se rehusó a venir.
Unfortunately he refused to come.
Lamentablemente no entiendo bien inglés.
Unfortunately, I don't understand English well.
Lamentablemente, no comparto tu opinión.
Unfortunately, I don't share your views.