Through the word of the week, students will be challenged to develop and extend their vocabulary through learning and using a specific word each week.

‘Word of the Week’ sees students being introduced to a selected word every new week.  Students will be expected to learn to read the word correctly, spell it and understand its meaning.  In developing their vocabulary further they will also be taught further words of similar meaning and given examples of word use.

Each week has a word for focus, and this week we’ll be focusing on the word ‘sustainable’. You can find other words of the week here


Part of Speech: Adjective

sus·​tain·​able | \ sə-ˈstā-nə-bəl  \

Definition of sustainable

1 : capable of being sustained

2a : of, relating to, or being a method of harvesting or using a resource so that the resource is not depleted or permanently damaged

  • sustainable techniques
  • sustainable agriculture

b : of or relating to a lifestyle involving the use of

  • sustainable methods
  • sustainable society

3: able to be used without being completely used up or destroyed

4: involving methods that do not completely use up or destroy natural resources

5: able to last or continue for a long time

6: able to be maintained at a certain rate or level.

  • “Sustainable economic growth”

7: conserving an ecological balance by avoiding depletion of natural resources.

  • “our fundamental commitment to sustainable development”

8: able to be upheld or defended.

“sustainable definitions of good educational practice”

Other Words from sustainable

  • sustainability \ sə-​ˌstā-​nə-​ˈbi-​lə-​tē \ noun
  • sustainably \ sə-​ˈstā-​nə-​blē \ adverb



defendable, defensible, justifiable, maintainable, supportable, tenable


indefensible, insupportable, unjustifiable, unsustainable, untenable

Near Antonyms for sustainable

absurd, illogical, irrational, ridiculous, unsound

extreme, outrageous, unreasonable, groundless, objectionable, unacceptable, unfounded, inexplicable, unexplainable

Examples of sustainable in a Sentence

  • a line of argument that is probably not sustainable in a public forum against skilled debaters
  • ….has no sustainable claim to the property without a deed or some other document
  • The question is has the needle moved enough for substantive change to occur — and be sustainable?
  • There’s no path to a safer and more sustainable society for working people that doesn’t involve overcoming these 21st-century divide-and-conquer tactics.
  • However, to be sustainable, agriculture must provide the farmer with a living.
  • Part B outlines the new policy, which promotes sustainable agriculture, and Part C focuses on policy implementation.
  • Resolving the VAT anomaly remains the most obvious means of promoting more sustainable approaches to the housing stock

First Known Use of sustainable

In the year 1924

Words Related to sustainable

certifiable, documentable, well-founded, defensible, excusable, justifiable, vindicable, warrantable, alleged, assumed, conjectured, guessed, presumed, surmised, suspected

History and Etymology of Sustainable

The name sustainable is derived from the Latin sustinere (tenere, to hold; sub, under). Sustain can mean “maintain”, “support”, “uphold” or “endure”

Also the term’s history dates back to 1610s, “bearable,” from sustain + -able. Attested from 1845 in the sense “defensible;” from 1965 with the meaning “capable of being continued at a certain level.” Sustainable growth is recorded from 1965. Related: Sustainably.


Sustainably | Definition of Sustainably by Merriam-Webster. https://www.merriam-webster.com/dictionary/sustainably

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