geological

adjective

geo·​log·​i·​cal ˌjē-ə-ˈlä-ji-kəl 

variants or less commonly geologic

ˌjē-ə-ˈlä-jik 

: of, relating to, or based on geology

geologically

ˌjē-ə-ˈlä-ji-k(ə-)lē 

adverb

Examples of geological in a Sentence

Recent Examples on the Web

Since 1996, just 12 large-scale geological storage projects have been constructed. — Katie Worth, ProPublica, 30 Oct. 2026

The real game-changer, Liu said, would be samples collected with careful geological context, like those Perseverance has gathered in and around Jezero Crater. — Jacek Krywko, ArsTechnica, 30 Oct. 2026

The former approach builds geological repositories by blasting and digging massive underground tunnels, shafts, and caverns. — Muskan Bhatia, Interesting Engineering, 30 Oct. 2026

Like several other important fossils previously sold at auction, Jodi comes from Hell Creek Formation, a geological boneyard stretching across Montana, Wyoming and the Dakotas. — Jacopo Prisco, CNN Money, 27 Oct. 2026

Word History

Etymology

see geology

First Known Use

circa 1723, in the meaning defined above

Rhymes for geological

• illogical
• zoological
• aetiological
• anthropological
• archaeological
• archeological
• axiological
• climatological
• deontological
• dermatological
• eschatological
• etiological