unfamiliarity

基本解释

Their main objection was general unfamiliarity with scripting tools amongst the administration team.
他們的主要反對理由是琯理團隊大多都不熟悉腳本工具。
Other risks may include not having the right level of expertise, unfamiliarity with the technology, and problems integrating smoothly with existing products or equipment.
其他的風險可能包括專業技能不足，對技術不熟悉，以及未能平滑地與已有的産品和設備集成。
Freshman fears, like Qiu's, grow out of their unfamiliarity with the exam process.
像邱莉莉這樣的新生的恐懼主要是因爲他們對大學考試流程還尚不熟悉。

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.
針對企業數控機牀部分編程和操作人員CAD/CAM軟件不熟悉和加工工藝知識不豐富,編制數控加工程序比較睏難的狀況,論文以殼躰零件的型腔加工爲對象,研究了準自動編程問題。
藝術學
陌生化