adj.
Pronunciation: f ə - ' dü-sh ə l, - ' dyü-, f ī -
Function: adjective
Date: 1571
1 : taken as standard of reference <a fiducial mark>
2 : founded on faith or trust
3 : having the nature of a trust : FIDUCIARY
– fi · du · cial · ly \ -sh ə -l ē \ adverb