THESAURUS
forfeiture
amercement, bereavement, cost, damage, damages, dead loss, debit, denial, denudation, deprivation, despoilment, destruction, detriment, dispossession, distraint, distress, divestment, escheat, escheatment, expense, fine, forfeit, injury, loser, losing, losing streak, loss, mulct, perdition, privation, robbery, ruin, sacrifice, sconce, spoliation, stripping, taking away, total loss
ROGET THESAURUS
forfeiture
Nonobservance
N
nonobservance, evasion, inobservance, failure, omission, neglect, laches, laxity, informality, infringement, infraction, violation, transgression, piracy, retraction, retractation, repudiation, nullification, protest,
forfeiture, lawlessness, disobedience, bad faith, violating, lawless, transgressive, elusive, evasive, unfulfilled &c (fulfill).
Loss
N
loss, deperdition, perdition,
forfeiture, lapse, privation, bereavement, deprivation, riddance, damage, squandering, waste, losing, not having, shorn of, deprived of, denuded, bereaved, bereft, minus, cut off, dispossessed, rid of, quit of, out of pocket, lost, long lost, irretrievable, off one's hands, Int, farewell to!, adieu to.
Penalty
N
penalty, retribution, pain, pains and penalties, weregild, wergild, peine forte et dure, penance, the devil to pay, fine, mulct, amercement, forfeit,
forfeiture, escheat, damages, deodand, sequestration, confiscation, premunire, doomage.
Undueness
N
undueness, malum prohibitum, impropriety, illegality, falseness, emptiness of title, invalidity of title, illegitimacy, loss of right, disfranchisement,
forfeiture, usurpation, tort, violation, breach, encroachment, presumption, assumption, seizure, stretch, exaction, imposition, lion's share, usurper, pretender, undue, unlawful, unconstitutional, illicit, unauthorized, unwarranted, disallowed, unallowed, unsanctioned, unjustified, unentitled, disentitled, unqualified, disqualified, unprivileged, unchartered, illegitimate, bastard, spurious, supposititious, false, usurped, tortious, undeserved, unmerited, unearned, unfulfilled, forfeited, disfranchised, improper, unmeet, unfit, unbefitting, unseemly, unbecoming, misbecoming, seemless, contra bonos mores, not the thing, out of the question, not to be thought of, preposterous, pretentious, would-be, filius nullius.