inertia
英検準1級惰性・無気力・慣性
意味
- (物体の)慣性,惰性,惰力
- 不活発,ものぐさ
語源
英語の原文（Wiktionary）
From Latin inertia (“lack of art or skill, inactivity, indolence”), from iners (“unskilled, inactive”), from in- (“without, not”) + ars (“skill, art”). Something close to the modern physics sense was first used in New Latin by Johannes Kepler.
辞書順で近い単語
ineffective inefficient inequality inevitable inevitably inexcusable