English

Noun

rhyme or reason ‎(uncountable)

1. (idiomatic) Logic. Common sense.

   Prices vary considerably from one town to another with no apparent rhyme or reason.

   He would often fly into an unexpected rage without rhyme or reason.

Usage notes

• Almost always used in a negative form, particularly with no and without

Translations

1. ↑ Wikipedia page for Edmund Spenser, Rhyme and reason topic