barrier [noun]

Definition of barrier:

any condition that makes it difficult to make progress or to achieve an objective

Synonyms of barrier:

● Roadblock

● Obstacle

● Impediment

● Obstruction

● Hindrance

● Bar

● Wall

● Fence

● Barricade


Opposite/Antonyms of barrier:

● Opening

● Aid

● Assistance

● Entry

● Catalyst

● Entrance

● Advantage

● Capitalize


Sentence/Example of barrier:

The entrance to this and adjacent bays is through narrow breaks in the barrier reef.