Synonyms for Unfulfillment:

• n.

  •disappointment (noun)
  • disenchantment,
  • letdown,
  • bafflement,
  • regret,
  • discontent,
  • non-success,
  • dissatisfaction,
  • disillusionment,
  • nonsuccess,
  • setback,
  • discouragement,
  • defeat,
  • despondency,
  • mortification,
  • chagrin,
  • the knocks,
  • lack of success,
  • adverse fate,
  • failure,
  • disillusionments,
  • blow,
  • disillusion,
  • distress,
  • adversity,
  • disgruntlement.
  •frustration (noun)
  • drag,
  • irritation,
  • curbing,
  • hindrance,
  • bitter pill,
  • impediment,
  • grievance,
  • fizzle,
  • blocking,
  • bummer,
  • obstruction,
  • vexation,
  • downer,
  • annoyance,
  • contravention,
  • circumvention,
  • foiling,
  • resentment.

• Other synonyms:

  •
  • Noncompletion.

Antonyms for Unfulfillment:

• n.

  • disappointment
    boost, achievement, delight, triumph, euphoria, encouragement, success, satisfaction, wonder, miracle, attainment, comfort, relief, pleasure, contentedness, blessing, win, happiness, boon, aid, help.
  • frustration
    facilitation, assistance, promotion, support, advance, cooperation.