ESPERANTO: lightning fast | en fulma rapideco |
| lightning speed | fulma rapideco |
| ploddingly, at ox speed | laŭ bova rapideco |
| slowness | malrapideco |
| alacrity, briskness, celerity, haste, promptitude, rapidity, speed, swiftness, velocity | rapideco |
| file transfer speed | rapideco de dosiera transdono |
| precipitancy, precipitation | trorapideco |
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