tectonic

tectonic — adjective

1. relating to the slow movement and reshaping of the large pieces of rock that for

1.形容詞C1
釋義

relating to the slow movement and reshaping of the large pieces of rock that form the outer layer of the earth

例句

The Himalayan mountain range was formed by tectonic activity millions of years ago.

tectonic activity — describes earth-crust movement

Tectonic plates move just a few centimetres each year — Mayumi explained this in geography class.

tectonic plates — the segments of the earth's crust

同義詞
  • geological

    broader term covering all earth-science processes, not limited to plate movement

  • crustal

    more technical and restricted to the earth's crust specifically; less common in general writing

文法句型

tectonic + noun (plate, activity, shift, movement, event)

用法筆記

Frequently used in compound nouns and noun phrases such as 'tectonic plate', 'tectonic activity', and 'tectonic shift'. The related noun 'plate tectonics' is the scientific term for the theory that explains how the earth's outer layer moves.

常見錯誤

❌There was a tectonic in the earth.
✅There was a tectonic shift in the earth's crust.
💡'tectonic' is an adjective, not a noun; it must modify a noun such as 'plate', 'shift', or 'activity'.
❌The tectonic moved under the city.
✅The tectonic plate moved under the city.
💡'tectonic' alone does not mean 'tectonic plate'; the noun 'plate' must be included.

2. describing a very great change in a situation or system that affects everything

2.形容詞B2
釋義

describing a very great change in a situation or system that affects everything connected to it

例句

The internet caused a tectonic shift in how people communicate and do business.

figurative: tectonic shift — describes major societal change

Harper described the election result as a tectonic change in the country's political landscape.

同義詞
  • seismic

    closest figurative synonym, also drawn from geology; suggests sudden, shocking impact rather than slow restructuring

  • monumental

    emphasises size and importance but not the structural, system-wide nature of the change

  • transformative

    focuses on the result of change (something becomes different) rather than the scale or depth

  • revolutionary

    stresses radical newness and intentional overthrow of the old system

反義詞
  • minor

    opposite in scale — tectonic changes are major, not minor

  • superficial

    tectonic changes are deep and structural, not surface-level

文法句型

tectonic + shift / change / transformation

用法筆記

Almost always used before a noun that describes change or transformation ('shift', 'change', 'transformation', 'upheaval'). Not used for everyday minor changes or personal disagreements. The geological metaphor implies the change is slow, deep, and structural rather than sudden or superficial.

常見錯誤

❌We had a tectonic argument at dinner.
✅The industry underwent a tectonic change.
💡'tectonic' is reserved for large-scale, structural shifts, not personal conflicts.
❌There was a tectonic difference in the prices.
✅There was a tectonic shift in the market.
💡'tectonic' must modify the noun 'shift', 'change', or 'transformation'; it does not collocate with 'difference'.