Capable of being established, proven, or made permanent; able to be founded or verified.
From 'establish' (Latin 'stabilire' + 'ex-') plus the suffix '-able,' meaning 'capable of being.' The form emerged in Middle English as people needed to describe what could be made stable.
Scientists and lawyers love this word because it separates what's merely possible from what's provable—something is only scientifically valid if it's actually establishable through evidence!
Complete word intelligence in one call. Free tier — 50 lookups/day.