Meaning of imponderabilia

im•pon•der•a•bil•i•a

Pronunciation: (im-pon"dur-u-bil'ē-u, -bil'yu), [key]
— n.pl.
  1. imponderables: the imponderabilia surrounding human life.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.