/wuyld"kahrd'/ , adj.
1. of, constituting, or including a wild card.
2. Informal. of, being, or including an unpredictable or unproven element, person, item, etc.
3. Sports. of, being, or including an unseeded or unproven participant or team, as a team in a championship tournament that has not placed first in its league or area.
[ 1955-60 ]