At wide intervals, scarce, as in Supporters of the amendment are few and far between. This expression originally was used very literally for physical objects such as houses appearing at widely separated intervals. Today it is also used more loosely. [Mid-1600s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
How to use few and far between in a sentence
He would not like his guests to feel bored at losing one of their precious few-and-far-between holidays.The Girls of St. Olave's | Mabel Mackintosh