1. intended to exclude or keep out; designed to prevent someone or something from entering or participating
2. (law) relating to the exclusion of evidence obtained illegally or improperly from a trial
Usage: legal

Examples

• The club's exclusionary membership policies prevented many qualified applicants from joining.
• The new zoning laws were criticized as exclusionary because they made housing unaffordable for low-income families.
• The judge applied the exclusionary rule to suppress the illegally obtained evidence.
• Exclusionary practices in hiring have been illegal for decades.
• The school's exclusionary discipline policies disproportionately affected minority students.
• The country's exclusionary immigration laws faced international criticism.