スピードsupiido
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- nounspeed
- Synonym速度そくどNeutralNeutral noun for speed, leaning formal and technical (physics), as in 「制限速度」; 「スピード」 is the everyday word.
- Synonym速さはやさNeutralNeutral noun for how fast something is, as in 「速さを比べる」; spelled 「早さ」 it means earliness in time. Plainer than 「スピード」.
- Synonym速力そくりょくWrittenWritten/formal word for the speed of a moving object, as in 「全速力で走る」; mostly in fixed phrases, with 「スピード」 normal in daily use.
- SynonymペースNeutralNeutral loanword for pace and rhythm, as in 「自分のペース」; stresses ongoing progress, while 「スピード」 stresses how fast or slow.
- Antonym遅さNeutralNeutral noun for the degree of slowness, the opposite of 「スピード」 in its 'fast' sense, as in 「スピードがある」.
Everyday word for speed, as in 「スピード違反」. Use 「速度」 in physics or formal contexts, 「速さ」 for how fast, 「ペース」 for pace and rhythm, 「速力」 in fixed phrases, 「遅さ」 for slowness.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


