Word
optimum
Phoneticsop·ti·mum, stress on the first syllable
US/ˈɑptəməm/
UK/ˈɒptɪməm/
Definitions
01best or most effective
B2 · Upper Intermediate Academic
adj. the best or most suitable for a particular purpose.
adj. denoting the most advantageous or favourable condition for a specific result. Usually non-gradable.
Español:óptimo
“The plants need the optimum amount of sunlight to grow quickly.”
“The engineering team identified the optimum temperature for the chemical reaction to ensure maximum yield without damaging the equipment.”
Usage
Often used before a noun to describe conditions, levels, or timing.
02the best possible level
C1 · Advanced Countable noun Academic · Technical
n. the best possible level or state for something.
n. the most favourable condition or greatest degree possible under specific circumstances.
“The athlete reached his physical optimum just before the competition started.”
“The experiment sought to determine the biological optimum for the species' growth within a controlled laboratory environment.”
Usage
Usually used with 'the' or a possessive pronoun.
Antonyms
03a warm climate period
C2 · Proficiency Countable noun Science Technical · Academic
n. a long period of time in history when the weather was consistently warm.
n. a geological or historical period characterized by a persistently warm climate.
“During the medieval optimum, many crops grew in places that are now too cold.”
“The Holocene climate optimum allowed for significant shifts in vegetation patterns across the northern hemisphere due to sustained higher temperatures.”
Synonyms
Real-World Examples
“Superstition hovers around the 100bpm mark, slightly slower than the perceived optimum – 107-126bpm, according to one 2018 analysis ; other studies landed on 120bpm.” “It was wonderful."
In qualifying, Gasly was positioned second last in the train of cars on the final qualifying run, the absolute optimum place in terms of a slipstream.” “His tyres would therefore not have been in optimum condition when he tried again a lap later.” “Typographers have a long history of not accepting what they are initially given, in order to achieve optimum performance for readers.” Etymology
From New Latin, neuter of Latin optimus (“best, very good”), from the root in ops (“work”) or omnis (“all”).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
VERB
NOUN
ADJECTIVE
ADVERB
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.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL 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: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
- Frequency
- Frequent
- Level
- C1 · Advanced
- Updated
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QR code
englishreference.com/q/optimum
Traducciones: Kaikki.org (Wiktionary), CC BY-SA 4.0