WordNet Dictionary- [adj] added to supplement; "adscititious remarks"
- [adj] added or derived from something outside; not inherent; "an adscititious habit rather than an inherent taste"
Webster's 1913 Dictionary\Ad`sci*ti"tious\, a. [L. adscitus, p. p. of
adsciscere, asciscere, to take knowingly; ad + sciscere to
seek to know, approve, scire to know.]
Supplemental; additional; adventitious; ascititious.
``Adscititious evidence.'' --Bowring. --
{Ad`sci*ti"tious*ly}, adv.