| Main Entry: | |
| Part of Speech: | noun |
| Definition: | sudden change of behavior |
| Synonyms: | bee, caper*, changeableness, contrariety, crotchet, fad, fancy, fickleness, fitfulness, fool notion, freak, gag, humor, impulse, inconsistency, inconstancy, jerk, kink, mood, notion, peculiarity, perversity, put on*, quirk, rib, temper, thought, vagary, vein, whim, whimsy |
| Antonyms: | constancy, constant, dependability, steadfastness |
| Main Entry: | faithlessness |
| Part of Speech: | noun |
| Definition: | disloyalty |
| Synonyms: | betrayal, disbelief, dishonesty, doubt, falseness, fickleness, fraud, inconstancy, infidelity, perfidiousness, perfidy, skepticism, treacherousness, treachery, treason, unfaithfulness |
| Antonyms: | belief, constancy, faithfulness, loyalty |
| Main Entry: | flightiness |
| Part of Speech: | noun |
| Definition: | irresponsibility |
| Synonyms: | airheadedness, capriciousness, changeability, dizziness, fickleness, flippancy, frivolity, giddiness, inconstancy, instability, levity, lightness, mercurialness, variability, volatility, whimsicality, whimsicalness |
| Antonyms: | responsibility |
| Main Entry: | infidelity |
| Part of Speech: | noun |
| Definition: | disloyalty to an obligation |
| Synonyms: | adultery, affair, bad faith, betrayal, cheating, duplicity, extramarital relations, faithlessness, falseness, falsity, inconstancy, lewdness, perfidiousness, perfidy, treacherousness, treachery, treason, two-timing, unfaithfulness |
| Antonyms: | faithfulness, fidelity, loyalty |
| Main Entry: | restlessness |
| Part of Speech: | noun |
| Definition: | constant motion; discontent |
| Synonyms: | activity, agitation, ailment, ants, antsiness, anxiety, bustle, disquiet, disquietude, disturbance, edginess, excitability, ferment, fitfulness, fretfulness, hurry, inconstancy, inquietude, insomnia, instability, jitters, jumpiness, movement, nervousness, restiveness, transience, turbulence, turmoil, uneasiness, unrest, unsettledness, worriedness |
| Antonyms: | calm, contentedness, relaxation, restfulness |
| Main Entry: | vagary |
| Part of Speech: | noun |
| Definition: | caprice |
| Synonyms: | crotchet, fancy, fool notion, humor, idea, impulse, inconsistency, inconstancy, notion, quirk, whim, whimsy |
| Main Entry: | unfaithfulness |
| Part of Speech: | noun |
| Definition: | infidelity |
| Synonyms: | apostasy, bad faith, defection, dereliction, disloyalty, fickleness, improbity, inconstancy, perfidy, recreancy, treachery, treason |
| Antonyms: | faithfulness, loyalty |
| Main Entry: | weakness |
| Part of Speech: | noun |
| Definition: | defect, proneness |
| Synonyms: | Achilles heel, appetite*, blemish, chink in armor, debility, decrepitude, deficiency, delicacy, enervation, failing, faintness, fault, feebleness, flaw, fondness, fragility, frailty, gap, impairment, imperfection, impotence, inclination, inconstancy, indecision, infirmity, instability, invalidity, irresolution, lack, languor, lapse, liking, passion, penchant, powerlessness, predilection, proclivity, prostration, senility, shortcoming, soft spot, sore point, taste*, vice, vitiation, vulnerability |
| Antonyms: | strength, strong point |
| Main Entry: | fluctuation |
| Part of Speech: | noun |
| Definition: | vacillation |
| Synonyms: | change, inconstancy, variation |