Pronunciation (UK) IPA (key): /ˈɒbstəkl̩/ (US) IPA (key): /ˈɑbstəkl̩/ Audio (US)(file) Hyphenation: ob‧sta‧cle Noun Singular obstacle Plural obstacles (countable) An obstacle is something that blocks your way.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads