[いかん, ikan] (adj-na, n) regrettable; unsatisfactory; (P) #19444
[いかんにたえない, ikannitaenai] (exp, adj-i) really regrettable
[いかんせんばん, ikansenban] (adj-na) highly regrettable; utterly deplorable
[あたら;あったら, atara ; attara] (adj-pn) alas; regrettably
[くやしい(P);くちおしい(口惜しい), kuyashii (P); kuchioshii ( kuchioshi i )] (adj-i) vexing; annoying; frustrating; regrettable; mortifying; (P)
[くやまれるしっさく, kuyamarerushissaku] (n) regrettable misstep
[こんじ, konji] (n) regrettable matter
[のこりおしい, nokorioshii] (adj-i) regrettable; reluctant
[こさぎ, kosagi] (n) (uk) little egret (Egretta garzetta)
[しんがい, shingai] (adj-na) (1) regrettable; vexing; upsetting; (2) unthinkable; wholly unexpected; (P)
[しんがいせんばん, shingaisenban] (n, adj-na) being totally upset (by); being completely nonplused (by); being mortified (at); feeling aggrieved (at); finding (it) highly regrettable
[おしい, oshii] (adj-i) (1) regrettable; disappointing; (2) precious; dear; valuable; (3) too good for; deserving better; (4) almost but not quite; (P)
[おしくも, oshikumo] (n) to one's regret (chagrin); regrettably
[おしむべき, oshimubeki] (exp) lamentable; regrettable
[せきはい, sekihai] (n, vs) regrettable defeat; defeat by a narrow margin; (P)
[ねんなし, nennashi] (exp) (1) unexpectedly; (2) regrettably; (3) easily