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

Within 80 or so million years—the blink of an eye in geological terms—the first transitional forms between bryophytes and vascular plants had emerged, including ferns. — Literary Hub, 2 Oct. 2026

With its affinities for isolation and, at times, imposing scale, Land art conjures archaeology and the geological sublime—vast expanses of space and time. — Jeffrey Weiss, Artforum, 1 Oct. 2026

Coral is simultaneously biological material, geological record, and evidence of the physical foundation upon which the city was constructed. — Erin Parish, Miami Herald, 1 Oct. 2026

Energy experts previously dismissed these natural geological anomalies as hazardous and rare. — Mrigakshi Dixit, Interesting Engineering, 29 Sep. 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