Synonyms of regrettable

1 Syllable
sad, dire
2 Syllables
grievous, dreadful, woeful, punker
3 Syllables
pitiable, pitiful, shameful, heart-rending, distressing, heartbreaking, unhappy, dolorous
4 Syllables
disappointing, dislikable, lamentable, ill-advised, deplorable, dolesome, dolorific, calamitous, afflictive
5 Syllables
objectionable, unfavorable, infelicitous, unfortunate
6 Syllables
unsatisfactory