adj.
That cannot be annulled or made void: an indefeasible claim; indefeasible rights.
indefeasibility in'de·fea'si·bil'i·ty n.
indefeasibly in'de·fea'si·bly adv.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
