Similar words
escollo
escollo is more figurative, a stumbling block; obstáculo is more general — both mean "obstacle."
Similar in other languages
Portuguese
entrave
entrave is the Portuguese word for the same thing — both mean "obstacle."
Portuguese
obstáculo
obstáculo is the Portuguese word for the same thing — both mean "obstacle."
Practice
1 What does obstáculo mean?
obstacle
2 Fill the gap: Superó el ___.
Full sentence: Superó el obstáculo. (He overcame the obstacle.)
3 Which fingerprint chart matches obstáculo?
obstáculo: neutral register, common frequency, general domain, neutral connotation.