underfit

adjective

: greatly reduced in volume and therefore in ability to erode or transport as a consequence of stream piracy

an underfit stream

Word History

Etymology

under entry 1 + fit, past participle of fit

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now