unfamiliarity

基本解释

Their main objection was general unfamiliarity with scripting tools amongst the administration team.
他们的主要反对理由是管理团队大多都不熟悉脚本工具。
Other risks may include not having the right level of expertise, unfamiliarity with the technology, and problems integrating smoothly with existing products or equipment.
其他的风险可能包括专业技能不足，对技术不熟悉，以及未能平滑地与已有的产品和设备集成。
Freshman fears, like Qiu's, grow out of their unfamiliarity with the exam process.
像邱莉莉这样的新生的恐惧主要是因为他们对大学考试流程还尚不熟悉。

Given the unfamiliarity of the names, I think it must mean something else.
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But part of the problem, Neighbors says, is simply cultural unfamiliarity with one of the basic premises of mental health.
NPR: Race and Mental Health in Katrina's Aftermath
Excerpt: It is not easy to convey the sense of stupefying unfamiliarity.
FORBES: Fact and Comment

不熟悉
Individual’s scarcity on processing acquisition stressed on unfamiliarity in CAD/CAM revealed in enterprises’NC lathe programmers and operators, and dilemma in NC programming,the paper researched issues on automatic processing program rests on cavity of shell parts.
针对企业数控机床部分编程和操作人员CAD/CAM软件不熟悉和加工工艺知识不丰富,编制数控加工程序比较困难的状况,论文以壳体零件的型腔加工为对象,研究了准自动编程问题。
艺术学
陌生化