optimal
gb/ˈɑptɪməl/ us/ˈɑptɪməl/
B2
English
~ 6100
Senses
0 senses
adjective
B2
property
1
best or most effective possible
Best or most effective for a given situation or purpose.
Usage pattern:
optimal for [something]
Common mistake:
Learners sometimes confuse "optimal" with "optional". "Optimal" means the best or most effective, while "optional" means not required or not necessary. Another common issue is overusing "optimal" in everyday speech, where native speakers would more naturally say "best" (e.g., "What is the best time?" is more common than "What is the optimal time?" in casual conversation). Some learners also mix it up with the noun "optimum"; "optimal" is the adjective (optimal conditions), while "optimum" is usually a noun (reach the optimum) or sometimes an adjective in some varieties of English.
Synonyms
best (Very common and general; less formal and less technical than "optimal".)
|
ideal (Suggests perfectly suited or without any fault, sometimes more absolute than "optimal".)
Antonyms
suboptimal (Explicitly means less than the best possible, often in technical or critical discussions.)
Collocations
optimal solution
|optimal performance
|optimal conditions
|optimal level
|optimal use
|optimal health
Themes
science
|business
|technology
|core_vocabulary
Examples
- We are still searching for the optimal solution to the scheduling problem.
- The doctor adjusted her medication to reach the optimal dose.
- For optimal performance, the software should be run on newer hardware.
- These plants require optimal light and temperature to grow quickly.
- The report recommends an optimal balance between work and rest.
Learner examples
- This is the optimal time to post the ad.
- Drinking water is optimal for your health.
- We chose the optimal route to avoid traffic.
- The teacher found the optimal way to explain the idea.
- You should keep food in the fridge for optimal freshness.
Grammar
Dictionary form
optimal
IPA
GB/ˈɑptɪməl/
US/ˈɑptɪməl/
Syllables & stress
op - tim - al (3 syllables)
Stress on 1st syllable (op)
Word forms
Adjective
- Base: optimal
Word family
Core family
Negative and opposite forms
suboptimal
adjective
suboptimally
adverb
Advanced or less common
optimality
noun
optimizer
noun C1
Expressions
No expressions linked to this entry yet.