耐震性（たいしんせい、taishinseい）
- seismic resistance

The Japanese word 耐震性 (たいしんせい - taishinsei) refers to the "earthquake resistance" or "seismic resistance" of something, typically a building, structure, or object. It describes the ability of a structure to withstand the effects of earthquakes and remain safe and functional. 耐震性 is a crucial concept in Japan due to its frequent earthquakes. It's not just about surviving; it's about minimizing damage and ensuring the safety of people. It encompasses various factors like the materials used, the design of the structure, and the construction techniques employed.

⚫︎ この家は耐震性が高いです。 Translation: This house has high earthquake resistance. ⚫︎ 耐震性の高い建物は地震の際にも安全です。 Translation: Buildings with high earthquake resistance are safe during earthquakes. ⚫︎ 地震対策として、耐震性を強化する必要がある。 Translation: As a countermeasure against earthquakes, it's necessary to strengthen earthquake resistance.

You use 耐震性 when discussing the ability of something to resist earthquakes. It's common in discussions about architecture, construction, engineering, and disaster preparedness. You can use it when evaluating the safety of a building, comparing the quality of different structures, or talking about measures taken to protect against earthquakes. It is often used in professional settings, news reports, and even casual conversations where earthquake safety is a concern.

耐震性 is typically written in kanji, 耐震性. The reading is たいしんせい in hiragana. There is no other common way to write this word. The okurigana (送りがな - suffix hiragana) is standard as seen in the word.

⚫︎ 耐震強度 (たいしんきょうど - taishinkyoudo) - Earthquake resistance strength ⚫︎ 免震性 (めんしんせい - menshinsei) - Seismic isolation (different but related concept)

⚫︎ While there isn't a direct antonym, words or phrases that would indicate the lack of earthquake resistance include: ⚫︎ 耐震性が低い (たいしんせいがひくい - taishinsei ga hikui) - Low earthquake resistance ⚫︎ 地震に弱い (じしんによわい - jishin ni yowai) - Weak against earthquakes

このマンションは、最新の技術で耐震性が強化されています。 ・Translation: This apartment building's earthquake resistance has been strengthened with the latest technology. ・Explanation: This sentence describes how a building has been improved to resist earthquakes using modern techniques, highlighting 耐震性 as a key feature.

古い建物は耐震性に問題がある場合が多いので、注意が必要です。 ・Translation: Old buildings often have problems with earthquake resistance, so caution is needed. ・Explanation: This example draws attention to potential issues regarding earthquake safety in old buildings, underlining the importance of assessing 耐震性.

The word 耐震性 is composed of three parts: ⚫︎ 耐 (たい - tai) - Meaning "to endure," "to withstand." ⚫︎ 震 (しん - shin) - Meaning "shake," or "tremor," referring to earthquakes. ⚫︎ 性 (せい - sei) - Meaning "quality," "property," or "characteristic." Therefore, 耐震性 literally means the "quality of withstanding earthquakes" or "earthquake resistance."