Meaning & use
irrational
Not based on logic or clear reasoning, especially when driven by emotion instead.
See it in a sentence
His irrational fear of elevators made the business trip especially stressful.
It felt irrational to panic over a delay of only ten minutes.
A note on using this word
In mathematics, an 'irrational number' cannot be written as a simple fraction, a distinct and unrelated technical sense.
Words with a similar meaning
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
rationallogical
Make it your own
Write a sentence using “irrational”, then compare your use with the examples above.
Your draft stays on this page and is not sent anywhere.