1N-UNCOUNT 偶像崇拜 Someone who practises idolatry worships idols. 偶像崇拜 [formal]
2N-UNCOUNT 盲目崇拜 If you refer to someone's admiration for a particular person as idolatry, you think it is too great and uncritical. 盲目崇拜 [formal, disapproval]
Their affection for her soon increased almost to idolatry.