unavailability

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the quality of not being available when needed
• Syn:
inaccessibility
• Ant:
availability, accessibility (for: inaccessibility)
• Derivationally related forms:
unavailable, inaccessible (for: inaccessibility)
• Hypernyms:
inconvenience

• Từ trái nghĩa / Antonyms:
  handiness, accessibility, availability, availableness