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

Endurance Is Coherent Adaptation Table Mountain’s geological foundations reach back more than half a billion years. — Gerald J. Leonard, Forbes.com, 22 July 2026

Carowinds said roller coaster foundation beams and support may change over time because of environmental, geological and mechanical reasons. — Claire Harutunian, Charlotte Observer, 21 July 2026

Scientists such as Jackson have compared Pliny the Younger’s account with the geological record preserved at Vesuvius, using his detailed chronicle to help reconstruct the volcano’s activity. — Ashley Strickland, CNN Money, 20 July 2026

The trail, which displays canyon views and unique geological formations, tends to be quieter than some of the other hiking options. — Evie Carrick, Travel + Leisure, 19 July 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