ROGET THESAURUS
repine
Pain
VB
feel pain, suffer pain, experience pain, undergo pain, bear pain, endure pain, smart, ache, suffer, bleed, ail, be the victim of, labor under afflictions, bear the cross, quaff the bitter cup, have a bad time of it, fall on evil days, go hard with, come to grief, fall a sacrifice to, drain the cup of misery to the dregs, sup full of horrors, sit on thorns, be on pins and needles, wince, fret, chafe, worry oneself, be in a taking, fret and fume, take on, take to heart, cark, grieve, mourn, yearn,
repine, pine, droop, languish, sink, give way, despair, break one's heart, weigh upon the heart.
Discontent
VB
be discontented, quarrel with one's bread and butter,
repine, regret, wish one at the bottom of the Red Sea, take on, take to heart, shrug the shoulders, make a wry face, pull a long face, knit one's brows, look blue, look black, look black as thunder, look blank, look glum, take in bad part, take ill, fret, chafe, make a piece of work, grumble, croak, lament, cause discontent, dissatisfy, disappoint, mortify, put out, disconcert, cut up, dishearten.
Regret
VB
regret, deplore, bewail,
repine, cast a longing lingering look behind, rue, rue the day, repent, infandum renovare dolorem, prey on the mind, weigh on the mind, have a weight on the mind, leave an aching void.
Dejection
VB
be dejected, grieve, mourn, take on, give way, lose heart, despond, droop, sink, lower, look downcast, frown, pout, hang down the head, pull a long face, make a long face, laugh on the wrong side of the mouth, grin a ghastly smile, look blue, look like a drowned man, lay to heart, take to heart, mope, brood over, fret, sulk, pine, pine away, yearn,
repine, despair, refrain from laughter, keep one's countenance, be grave, look grave, repress a smile, depress, discourage, dishearten, dispirit, damp, dull, deject, lower, sink, dash, knock down, unman, prostrate, break one's heart, frown upon, cast a gloom, cast a shade on, sadden, damp one's hopes, dash one's hopes, wither one's hopes, weigh on the mind, lie heavy on the mind, prey on the mind, weigh on the spirits, lie heavy on the spirits, prey on the spirits, damp the spirits, depress the spirits.