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

Colombia's geological service has documented 130 aftershocks since the quake. — CBS News, 13 Aug. 2026

Colombia’s geological service has documented 130 aftershocks since the quake. — ABC News, 12 Aug. 2026

So while Mercury isn’t visibly getting smaller from year to year, geological evidence shows that the planet has shrunk as its interior cooled. — Kaif Shaikh, Interesting Engineering, 11 Aug. 2026

Only now is the topic being revisited, especially as the energy sector has perfected drilling much longer wells, including horizontally, to unlock more crude oil from geological rock formations. — Jordan Blum, Fortune, 9 Aug. 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