impenetrable
gb/ɪmpˈɛnətɹəbəl/ us/ɪmpˈɛnətɹəbəl/
B2
英語
~ 8700
語義
0件の語義
adjective
C1
property
1
very difficult or impossible to understand
So hard to understand that people cannot or almost cannot understand it, often because it is very complex or not clearly explained.
用法パターン：
[text/idea/explanation/person] is impenetrable (to [someone])
よくある間違い：
Learners sometimes confuse "impenetrable" with simpler words like "hard" or "strange" and overuse it in casual contexts (e.g., saying "an impenetrable movie" instead of "a confusing movie"). It is usually used for very high levels of difficulty or complexity, often in formal or written contexts, and commonly with nouns like "jargon", "prose", "mystery", "argument", or "expression".
類義語
incomprehensible (Neutral, very close in meaning; common direct substitute for language or ideas that cannot be understood.)
|
opaque (Often used about writing or arguments that are hard to understand because they are unclear or overly complex; slightly more formal.)
|
unfathomable (Stresses that something is too deep or mysterious to understand, often about feelings or motives rather than technical language.)
対義語
clear (Describes language or ideas that are easy to understand, the direct opposite in terms of clarity.)
|
accessible (Focuses on being easy for many people to understand, especially writing or academic ideas.)
コロケーション
impenetrable jargon
|impenetrable prose
|impenetrable explanation
|impenetrable mystery
|an impenetrable text
|an almost impenetrable style
テーマ
communication
|thinking
|literature
|core_vocabulary
例文
- The report is written in such impenetrable jargon that only experts can make sense of it.
- Her motives remain impenetrable, even to her closest friends.
- I gave up after three chapters of his impenetrable prose.
- The legal contract is almost impenetrable to anyone without training.
- Despite his calm face, his expression was impenetrable, and no one knew what he was thinking.
学習者向け例文
- The book is full of impenetrable words, so I cannot enjoy it.
- The law is impenetrable to most people who are not lawyers.
- Her smile was impenetrable; we did not know if she was happy or angry.
- The teacher’s explanation was impenetrable, and the students were still confused.
- This article is too impenetrable for new learners of the subject.
adjective
B2
property
2
impossible or very hard to pass through
So thick, strong, or dense that people, animals, or things cannot, or can almost not, go through it.
用法パターン：
an impenetrable [barrier/forest/wall/defence]
よくある間違い：
Learners sometimes use "impenetrable" instead of more common words like "closed" or "blocked" for everyday things (e.g., "an impenetrable door" instead of "a locked door"). "Impenetrable" is stronger and suggests that passing through is nearly or totally impossible, not just inconvenient.
類義語
impassable (Common for roads or paths that cannot be traveled on; slightly less strong than "impenetrable".)
|
unbreachable (Often used for defenses or security systems that cannot be broken through; more technical or military.)
対義語
penetrable (Direct logical opposite; something that can be passed through or entered.)
|
porous (Lets things like water, air, or light through easily, the opposite of forming a solid barrier.)
コロケーション
impenetrable forest
|impenetrable barrier
|impenetrable wall
|impenetrable defenses
|virtually impenetrable
|almost impenetrable
テーマ
nature
|security
|objects
|space
|core_vocabulary
例文
- Thick vines and undergrowth made the jungle almost impenetrable.
- The data center is protected by impenetrable security systems and physical barriers.
- A high, impenetrable wall separated the two compounds.
- The castle’s impenetrable defenses kept the enemy out for months.
- Fog rolled in from the sea, forming an almost impenetrable curtain across the bay.
学習者向け例文
- The forest was so dense it was almost impenetrable.
- They built an impenetrable fence around the laboratory.
- The old city had impenetrable walls to keep enemies out.
- The snow became an impenetrable barrier on the road.
- The company says its system is impenetrable to hackers.
文法
辞書形
impenetrable
IPA
GB/ɪmpˈɛnətɹəbəl/
US/ɪmpˈɛnətɹəbəl/
音節・強勢
im - pen - et - rable （4音節）
Stress on 2nd syllable (pen)
活用形
Adjective
- Base: impenetrable
関連語
Core family
penetrate
verb B2
penetration
noun B2
Related words
penetrable
adjective
penetrating
adjective
impenetrably
adverb
Advanced or less common
impenetrability
noun
penetrability
noun
表現
この項目には、まだ関連する表現がありません。