irrational

nouns

a real number that cannot be expressed as a rational number
irrational, irrational number

adjectives

not consistent with or using reason
"irrational fears"; "irrational animals"
irrational
is derived from
irrationality
antonym
rational
is similar to
not based on reason or evidence
"blind hatred"; "blind faith"; "unreasoning panic"
blind, unreasoning
is similar to
not endowed with the capacity to reason
"a reasonless brute"
reasonless
is similar to
not based on reason
"there is a great deal that is nonrational in modern culture"
nonrational
is similar to
showing ignorance of the laws of nature and faith in magic or chance
"finally realized that the horror he felt was superstitious in origin"
superstitious
see also
without logical or meaningful connection
"a turgid incoherent presentation"
incoherent
see also
lacking in correct logical relation
illogical, unlogical
see also
not reasonable; not showing good judgment
unreasonable
real but not expressible as the quotient of two integers
"irrational numbers"
irrational
antonym
rational
pertains to
ratio
domain category
a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement
math, mathematics, maths