What context can I use each word in?
Learn when and how to use these words with these examples!
illogical
Example
It is illogical to assume that all dogs are aggressive based on one bad experience. [illogical: adjective]
Example
Her explanation for being late was completely illogical and made no sense. [illogical: adjective]
irrational
Example
His fear of flying is irrational since statistics show it is safer than driving. [irrational: adjective]
Example
She made an irrational choice to quit her job without having another one lined up. [irrational: adjective]
Good things to know
Which word is more common?
Illogical is less common than irrational in everyday language, but it is still a useful word to know for academic or technical writing. Irrational is more versatile and can be used in various contexts, including formal and informal settings.
What’s the difference in the tone of formality between illogical and irrational?
Both illogical and irrational are generally considered formal words, but irrational is more versatile and can be used in both formal and informal contexts.
