tectonic

adjective

tec·​ton·​ic tek-ˈtä-nik 

1

: of or relating to tectonics

2

: having a strong and widespread impact

a tectonic shift in voting patterns

tectonically

tek-ˈtä-ni-k(ə-)lē 

adverb

Synonyms of tectonic

• major
• significant
• historic
• important
• big

Examples of tectonic in a Sentence

There has been a recent tectonic shift in voting patterns.

a tectonic shift in societal trends occurred in the 1960s

Recent Examples on the Web

For this leaner, meaner Deafheaven, stylistic variety takes a backseat to speed and chaos, and when properly executed, subtle melodic or rhythmic tweaks wield the heft of the more tectonic transitions in the band’s defining songs. — Patrick Lyons, Pitchfork, 13 Oct. 2026

Earthquakes are common, especially along Panama’s border with Costa Rica and its Pacific coast, because of the interaction of several tectonic plates, including the Cocos, Nazca and Caribbean plates. — Aris Mariota, Los Angeles Times, 10 Oct. 2026

Panama is located near the intersection of several major tectonic plates. — Adam Kovac, Scientific American, 9 Oct. 2026

Russia’s exquisite air defenses and geographic depth made no difference, and images of burning Russian bombers finally settled the debate as to whether drones are a tactical aberration or a tectonic shift in geopolitical power. — Dan Driscoll, Foreign Affairs, 28 Sep. 2026

Word History

Etymology

probably borrowed from German tektonisch "pertaining to broader structural features of the earth's crust," earlier "of building or construction," borrowed from Late Latin tectonicus "of a builder or architect," borrowed from Greek tektonikós "of a carpenter, skilled in carpentry or building," from tekton-, téktōn "woodworker, carpenter, craftsman" + -ikos -ic entry 1; téktōn going back to Indo-European *tetḱ-on- (whence also Sanskrit takṣan-, tákṣā "carpenter," Avestan tašan-, tašā "builder, creator"), n-stem derivative from a verbal base *tetḱ- "fashion, produce," whence Sanskrit tákṣati "(s/he) fashions, builds from wood," Avestan tāšt "(s/he) forms," Latvian tešu, tèst "to hew," Old Church Slavic tešǫ, tesati "to hew, fell," (with o-grade) Lithuanian tašýti "to hew"

Note: A root of the form *tetḱ- would be peculiar for Indo-European. Helmut Rix, et al., (Lexikon der indogermanischen Verben, 2. Ausgabe, Wiesbaden, 2001) rescue the situation by hypothesizing that *tetḱ- represents a pre-Indo-European reduplicated aorist, *te-tḱ-, of a root *teḱ-, seen in unreduplicated form in Greek téknon "child, young of an animal" and étekon, tekeîn, aorist of tíktō, tíktein "to give birth to, beget, generate" (see dystocia). However—aside from the certain correspondence of Greek téktōn with Vedic Sanskrit takṣan-, Avestan tašan- —all other outcomes of this supposed root can be accounted for as *teḱ-s-, an extended form of *teḱ-. To explain this anomaly, Andrew Sihler (New Comparative Grammar of Greek and Latin, Oxford, 1995, p. 225) hypothesizes that téktōn is a conflation of a regular derivative *texōn and an unattested agentive derivative *téktōr, going back to *teks-tor-, (with cluster simplification as in hektós "sixth" corresponding to héx "six"). Traditionally added to the compared forms given in the etymology above are Latin texere "to weave, form by plaiting or twining, construct" and other words (see at text entry 1). See also technical entry 1.

First Known Use

1894, in the meaning defined at sense 1

Rhymes for tectonic

• atonic
• benthonic
• bionic
• bosonic
• bubonic
• canonic
• carbonic
• cyclonic
• demonic
• dystonic
• hadronic
• harmonic

Kids Definition

tectonic

adjective

tec·​ton·​ic tek-ˈtän-ik 

: of or relating to tectonics