Search Result for "regrettably": 
Wordnet 3.0

ADVERB (1)

1. by bad luck;
- Example: "unfortunately it rained all day"
- Example: "alas, I cannot stay"
[syn: unfortunately, unluckily, regrettably, alas]



WordNet (r) 3.0 (2006):

regrettably
    adv 1: by bad luck; "unfortunately it rained all day"; "alas, I
           cannot stay" [syn: unfortunately, unluckily,
           regrettably, alas] [ant: as luck would have it,
           fortuitously, fortunately, luckily]