rapidezvsrápidoWhat's the difference?

Quick tell: rapidez is a noun, rápido is an adjective, so they fill different roles in a sentence.

Which to use

“rapidez” is a noun and “rápido” is an adjective - they look or sound alike but fill different roles in a sentence.

#11,136
“rapidez” frequency rank
#811
“rápido” frequency rank
11947
confusion score

Side-by-Side Comparison

Feature rapidez rápido
Definition qualidade do que é rápido; velocidade; celeridade; prontidão: que anda depressa

Where the spellings diverge

Shared letters are muted; the letters that actually set rapidez and rápido apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.

7 ch
rapidez
6 ch
rápido

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: rapidez is /Rɐ.pi.ˈdeʃ/ while rápido is /ˈRa.pi.du/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 11947, derived from the frequency rank of both members and their visual similarity.

rapidez is recorded at frequency rank #11,136, classified as anoun, pronounced /Rɐ.pi.ˈdeʃ/. rápido is at rank #811, tagged as anadj, pronounced /ˈRa.pi.du/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 11947, this pair ranks #60,780 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of rapidez vs rápido

Shared letters: dipr. Private to "rapidez": aez. Private to "rápido": .

"rapidez" · 7 letters · shape CVCVCVC  ·  "rápido" · 6 letters · shape CVCVCV

Known mistypes of this pair

  • rapidezarpidez · raipdez · rapdiez · rapiddez · rapidezz · rapidze · rapiedz · rappidez

Frequency comparison

rapidez#11,136
rápido#811

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "rapidez" and "rápido" be used interchangeably?
No - they are not even the same part of speech. "rapidez" is a noun and "rápido" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "rapidez" or "rápido"?
"rápido" is the more common of the two: it sits at frequency rank #811 in our Portuguese list, against #11,136 for "rapidez". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering rapidez vs rápido

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “rapidez”; for an adjective, it's “rápido”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “rapidez” entry
  • Browse more pairs most likely to be confused. Most confusable

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list