Origin: 1250–1300; ME < LL
defēnsibilis, equiv. to L
defēns(
us) (
see defense ) +
-ibilis -ible; r. ME
defensable < OF < LL
defēnsābilis, equiv. to
defēnsā(
re) (freq. of
dēfendere to
defend ) +
-bilis -ble 
Related forms: de⋅fen⋅si⋅bil⋅i⋅ty, de⋅fen⋅si⋅ble⋅ness, noun
de⋅fen⋅si⋅bly, adverb
Synonyms:
2. suitable, fit, tenable, allowable, warrantable.