Preclusive

(a.) Shutting out; precluding, or tending to preclude; hindering.

Thesaurus Entries

deterrent, deterring, discouraging, ethnocentric, exceptional, excluding, exclusive, exclusory, forbidding, forestalling, inadmissible, inhibitive, inhibitory, insular, interdictive, interdictory, narrow, parochial, prescriptive, preventative, preventive, prohibiting, prohibitive, prohibitory, prophylactic, proscriptive, repressive, restrictive, seclusive, segregative, select, selective, separative, snobbish, suppressive, xenophobic