[ざんねん, zannen] (adj-na, n) deplorable; bad luck; regret; disappointment; (P) #1808
[しつぼう, shitsubou] (n, vs) disappointment; despair; (P) #17631
[yareyare] (int) exclamation of relief or disappointment; (P)
[gabi-n] (int) (m-sl) (onom) indicates shock and disappointment (not actually said out loud)
[getsu ; getsu ; ge ; ge] (int) exclamation of surprised disappointment, disgust, or worry (yuck, ick, ack, eeew, crap!, blech, gross)
[きたいはずれ, kitaihazure] (n, adj-no) disappointment; let-down
[けつぼう, ketsubou] (n, vs) disappointment; disillusion; resentment
[ざんねんしごく, zannenshigoku] (n, adj-na) deep regret; bitter disappointment; chagrin; vexation
[ざんねんむねん, zannenmunen] (n, adj-na) deep regret; bitter disappointment; chagrin; vexation
[じまい, jimai] (suf) (1) (uk) (after a noun) (See 店じまい) ending; quitting; closing; (2) (uk) (after the 〜ず negative form of a verb) indicates disappointment for not having done what one wanted or intended to do
[おもわくちがい, omowakuchigai] (n) miscalculation; disappointment
[しつい, shitsui] (n, adj-no) disappointment; despair; adversity; (P)
[しつぼうかん, shitsuboukan] (n) feeling of disappointment; sense of dismay
[たいへんざんねん, taihenzannen] (n) deep regret; great disappointment
[あてはずれ, atehazure] (n, adj-na) disappointment
[ひょうしぬけ, hyoushinuke] (n, vs, adj-no) anticlimax; let-down; disappointment; loss of interest
[ひかん, hikan] (n, vs) pessimism; disappointment; (P)
[らくたん, rakutan] (n, vs) discouragement; despondency; dejection; disappointment; (P)
[ちからぬけ, chikaranuke] (n, vs) discouragement; disappointment
[ちからおとし, chikaraotoshi] (n) discouragement; disappointment; loss of energy; fatigue