supervacaneous adjective. 
[su:pǝvǝ'keɪnɪǝs, sju:-] Now 
rare or 
obsolete. 
M16.[Latin supervacaneus, formed as SUPER- + vacare be empty or void: see -EOUS.]Unnecessarily added to what is essential; superfluous, redundant.
 ■   supervacaneously adverb M17. ■   supervacaneousness noun M18.  [TahlilGaran] English Dictionary ▲