Word
retard
Phoneticsre·tard, stress on the second syllable
/ɹiˈtɑɹd/
Definitions
01to slow down progress
C1 · Advanced Science Technical · Formal
v. to slow down the development or progress of something.
v. to delay or impede the development, progress, or arrival of something. Transitive — requires a direct object.
“The new chemical was added to the plastic to retard the spread of fire.”
“The lack of adequate sunlight significantly retarded the growth of the experimental crops during the winter months.”
Antonyms
02music tempo
C2 · Proficiency Countable noun Music Technical
n. a moment in music where the speed slows down.
n. a reduction in the tempo of a piece of music. Often used as a synonym for ritardando.
“The conductor signaled a slight retard at the end of the song.”
“The final four bars of the concerto require a gradual retard to emphasize the emotional weight of the closing theme.”
Synonyms
Antonyms
Usage
The verb is transitive and takes a direct object. In music, the related term 'ritardando' is more common for describing a decrease in tempo.
Pitfall
The medicine retarded to the infection.
The medicine retarded the infection.
Retard is transitive and does not take the preposition 'to' before its object.
Word family
VERB
NOUN
ADJECTIVE
Domain
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C2 ProficiencyIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.8.5–9.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 6.0114–120
- Frequency
- Frequent
- Level
- C2 · Proficiency
- Updated
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