optimal
adjective /ˈɒptɪməl/
/ˈɑːptɪməl/
(also optimum)
- the best possible; producing the best possible results
- The optimal economic position for households is represented by point B on the chart.
- The optimal temperature for the development of larvae is in the range 18–26˚C.
Word Originlate 19th cent.: from Latin optimus ‘best’ + -al.