restricted adj.
VERBS be | remain
ADV. heavily, highly, narrowly, seriously, severely, very New heavy industries were concentrated in narrowly restricted areas. He has a severely restricted diet. | increasingly | fairly, rather, relatively, somewhat | apparently | unduly Access to higher education has been unduly restricted for people with disabilities.
PREP. to Access to the documents remains restricted to civil servants.
You can also check other dicts: restricted (English, 中文解释 ), wordnet sense, Collins Definition