Relating to or characterized by the removal or loss of function; no longer serving a functional purpose.
From 'defunct' (no longer existing or functioning) plus the suffix '-ive,' which comes from Latin and creates adjectives. The word combines the state of being defunct with adjectival form.
Defunct itself comes from Latin 'defunctus' meaning 'finished' or 'done with'—originally it meant someone who had finished living (dead), then it expanded to anything finished being functional.
Complete word intelligence in one call. Free tier — 50 lookups/day.