Dictionary.com
Thesaurus.com
Showing results for hydrophobic. Search instead for ophidiophobic.

hydrophobic

American  
[hahy-druh-foh-bik] / ˌhaɪ drəˈfoʊ bɪk /

adjective

  1. of or relating to hydrophobia.

  2. Chemistry. having little or no affinity for water.


hydrophobic British  
/ ˌhaɪdrəˈfəʊbɪk /

adjective

  1. of or relating to hydrophobia

  2. chem tending not to dissolve in, mix with, or be wetted by water Compare hydrophilic

    a hydrophobic colloid

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of hydrophobic

First recorded in 1640–50; hydrophobe + -ic

Vocabulary lists containing hydrophobic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"By contrast, small-molecule drugs that are designed to cross the blood-brain barrier are hydrophobic in nature, which limits their bioavailability, increases the risk of off-target binding, and is linked to side effects."

From Science Daily • Nov. 6, 2025

But in a counterintuitive twist, the very mechanism that enables hydrophobic surfaces to deflect water droplets also leads to the shearing effect outlined in Backholm's paper.

From Science Daily • Apr. 16, 2024

Backholm expects these findings will further enable physicists and engineers to develop hydrophobic surfaces with better performance.

From Science Daily • Apr. 16, 2024

This can be covalent bonds, hydrogen bridge bonds, van der Waals forces, and hydrophobic interactions.

From Science Daily • Apr. 4, 2024

He detached himself from the tilting control panel and sailed wildly about like a hydrophobic goldfish in a bowl of water.

From Master of the Moondog by Mullen, Stanley

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "hydrophobic" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com