English
Etymology
From oppose + -ably.
Adverb
opposably (comparative more opposably, superlative most opposably)
- in an opposable manner
2003, Laura E Berk, JoDe Paladino, Tara Kindelberger, Study Guide for Berk : Child Development, Canadian Edition[1]:"By the end of the first year, infants use the thumb and index finger opposably in a well-coordinated grasp. "