inadequacy

/ˌɪnˈædɪkwəsi/ · 5 syllables

Meaning

noun

1. lack of an adequate quantity or number
   “the inadequacy of unemployment benefits”
2. a lack of competence
   “pointed out the insufficiencies in my report”
3. unsatisfactoriness by virtue of being inadequate

Synonyms for inadequacy

• insufficiency
• deficiency
• inadequateness

Antonyms of inadequacy

• adequacy