outside chance (noun) dark horse: remote possibility
Sinonime: baseless, bottomless, causeless,
chimerical,
empty,
false, flimsy, foundationless, gratuitous,
idle,
illogical,
illusory,
imaginary, unauthorized, uncalled-for, unfounded, unjustified, unprovoked, unsupported, unwarranted
Antonime: called-for, grounded, justified, proven,
reasonable,
warranted