'apostasy' definitions:

Definition of 'apostasy'

noun

The state of having rejected your religious beliefs or your political party or a cause (often in favor of opposing beliefs or causes) [syn: apostasy, renunciation, defection]

noun

The act of abandoning a party for cause [syn: apostasy, tergiversation]

Synonyms of 'apostasy'

From: Moby Thesaurus

about-face,
accommodation,
adaptation,
adjustment,
agreement to disagree,
alienation,
alteration,
amelioration,
atheism,
backsliding,
betrayal,
betterment,
bolt,
break,
breakaway,
change,
change of heart,
changeableness,
constructive change,
continuity,
conversion,
counter-culture,
crossing-over,
defection,
degeneration,
degenerative change,
dereliction,
deserter,
desertion,
deterioration,
deviation,
difference,
disaccord,
disagreement,
disapprobation,
disapproval,
discontinuity,
disloyalty,
disparity,
dissatisfaction,
dissension,
dissent,
dissentience,
dissidence,
divergence,
diversification,
diversion,
diversity,
dropping out,
Evangelicalism,
faithlessness,
fall from grace,
falseness,
fitting,
flip-flop,
going over,
gradual change,
impiety,
impiousness,
improvement,
irreligion,
irreverence,
lapse,
lapse from grace,
melioration,
minority opinion,
mitigation,
modification,
modulation,
new theology,
nonagreement,
nonassent,
nonconcurrence,
nonconformity,
nonconsent,
opposition,
overthrow,
perfidy,
Protestantism,
qualification,
radical change,
ratting,
re-creation,
realignment,
recidivation,
recidivism,
recreancy,
recusance,
recusancy,
redesign,
Reform,
reform,
reformation,
rejection,
remaking,
renewal,
renunciation,
repudiation,
reshaping,
restructuring,
reversal,
revival,
revivification,
revolution,
schism,
secession,
shift,
sudden change,
switch,
tergiversation,
total change,
transition,
treacherousness,
treason,
turn,
turnabout,
turning traitor,
underground,
undutifulness,
upheaval,
variance,
variation,
variety,
violent change,
walkout,
withdrawal,
worsening,
Zwinglianism