Fast vs Quick vs Rapid

Cuándo usar cada una en inglés, con significado, registro y ejemplos.

Fast

Top 1000 (muy común)A1adjective

Quick

Top 1000 (muy común)A1adjective

Rapid

Top 2000 (común)B2adjective
 FastQuickRapid
Pronunciación🇬🇧 /["/fɑːst/"]/🇺🇸 /["/fæst/"]/🇬🇧 /["/kwɪk/"]/🇺🇸 /["/kwɪk/"]/🇬🇧 //ˈræp.ɪd//🇺🇸 //ˈræp.ɪd//
SignificadoMoving or happening quickly.happening fast or in a short timehappening very quickly
EjemploShe runs very fast when she is late for school.She took a quick glance at the clock.The rapid changes in technology are hard to keep up with.
RegistroNeutralNeutralNeutral
Qué tan comúnTop 1000 (muy común)Top 1000 (muy común)Top 2000 (común)
Nivel CEFRA1A1B2
Categoría gramaticaladjectiveadjectiveadjective
Colocacionesbe, seem, extremely, fairly, very, be, seem, extremely, fairly, verybe, seem, become, extremely, fairly, very, at, quick and easy, be, seem, become, extremely, fairly, very, at, quick and easy, be, seem, become, extremely, fairly, very, at, quick and easyrapid response, rapid increase, rapid change
Antónimosslowslow, leisurelyslow, gradual, leisurely
Errores comunes'Fast' is sometimes confused with 'quick' improperly., Learners often forget that 'fast' can be used for both time and physical speed., Some may incorrectly add 'ly' to make it an adverb (fastly).Confused with 'fast' — while similar, 'quick' often implies a short duration., Using 'quicker' instead of 'more quick' — 'quick' forms a comparative like 'quicker'., Mixing up noun and adjective forms; remember 'quick' is an adjective.Confusing with 'quick', which implies speed but may not denote the same urgency., Using 'rapid' in contexts where a slower pace is typical.
Notas de usoUse 'fast' to describe speed, but be cautious when using it with 'to' (as in 'to fast', it means to not eat for a period of time). Appropriate in both written and spoken contexts.Used to describe actions or things that happen with speed. Avoid using in very formal situations; instead, use 'rapid' or 'swift'.Used to describe actions or changes that occur with speed. Suitable for both formal and informal contexts.

Preguntas frecuentes: Fast vs Quick vs Rapid

¿Cuál es la diferencia entre Fast, Quick y Rapid?

Fast: Moving or happening quickly. Quick: happening fast or in a short time Rapid: happening very quickly

¿Cuál es más avanzada: Fast, Quick y Rapid?

Rapid es la de nivel más alto, en B2, en la escala CEFR.

¿Fast, Quick y Rapid tienen el mismo nivel CEFR?

Fast: A1, Quick: A1, Rapid: B2 en la escala CEFR.

¿Qué categoría gramatical son Fast, Quick y Rapid?

Fast: adjective, Quick: adjective, Rapid: adjective.

¿Puedes mostrar un ejemplo de cada una?

Fast: She runs very fast when she is late for school. Quick: She took a quick glance at the clock. Rapid: The rapid changes in technology are hard to keep up with.

¿Puedo usar Fast, Quick y Rapid indistintamente?

No siempre. Fast, Quick y Rapid están relacionadas y a veces se solapan, pero difieren en registro, frecuencia y uso, así que cambiar una por otra puede alterar el significado o el tono. Revisa las diferencias de arriba antes de sustituir.

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