Synonyms for barrier


1. barrier, obstruction, obstructor, obstructer, impediment, impedimenta
usage: a structure or object that impedes free movement
2. barrier, roadblock, obstacle, obstruction
usage: any condition that makes it difficult to make progress or to achieve an objective; "intolerance is a barrier to understanding"
3. barrier, mechanism
usage: anything serving to maintain separation by obstructing vision or access
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