1. Difficult or impossible to extinguish
   "an inextinguishable flame"; "an inextinguishable faith"

Antonym: extinguishable

• indiscriminate
• indiscriminately
• indiscriminating
• indiscrimination
• indispensability
• indispensable
• indispensableness
• indispensably
• indispose
• indisposed
• indisposition
• indisputability
• indisputable
• indisputably
• indissoluble
• indissolubly
• indistinct
• indistinctive
• indistinctly
• indistinctness
• indistinguishability
• indistinguishable
• indistinguishably
• indite
• indium