Synset
not reasonable; not showing good judgment
<adj.all>
unreasonable
lexical pointers
antonym
reasonable
semantic pointers
also see
illogical, unlogical
immoderate
irrational
attribute
reasonableness
similar to
counterintuitive
indefensible, untenable
senseless, mindless, reasonless
undue, unjustified, unwarranted