noun, plural ir·ra·tion·al·i·ties for 2. the quality or condition of being irrational. an irrational, illogical, or absurd action, thought, etc.

What does irrationality mean?

(Entry 1 of 2) : not rational: such as. a(1) : lacking usual or normal mental clarity or coherence. (2) : not endowed with reason or understanding.

Is irrationality a word?

1. lacking the faculty of reason; deprived of reason. 2. lacking sound judgment or logic: irrational arguments.