'Extant': is it always the best word?
- Liz
- Jun 11
- 5 min read
Key points: ● Definitions of 'extant'. ● When 'extant' is a useful word. ● When it might be better to use an alternative word. ● A practical test of when to use 'extant' or not.
Definitions of 'extant'
First, here are a couple of definitions for you:
The online Cambridge Dictionary (British English) explains that 'extant' is "used to refer to something very old that is still existing".
The Merriam-Webster online dictionary (US English) defines 'extant' as meaning: 1. a: “currently or actually existing”; b: “still existing: not destroyed or lost”; and 2. (archaic): “standing out or above”.
You might, therefore, think you already know what 'extant' means. However, if you want to use it as a synonym for 'existing' in order to sound more formal or more academic, you need to be a bit careful.
When 'extant' is a very useful word
If something is extant, it might have survived despite being very old (e.g. documents that date from the 16th century), other examples were destroyed (e.g. in a fire) or similar items were lost (e.g. because people forgot about them or accidentally threw them away).
The opposite of 'extant' could be 'extinct' (e.g. dinosaurs). Some researchers controversially, I gather, refer to birds as living dinosaurs (i.e. extant dinosaurs), while others are more comfortable simply recognizing that birds are descended from dinosaurs.
If you are working in the field of history, archaeology, or palaeontology, therefore, you have a lot of scope to use 'extant'.
Example from William Shakespeare
William Shakespeare (1564 to 1616) was an English writer of plays and poems and he also acted. His plays are still performed today and his poetry is still read, both in the English-speaking world and in translation over much of the rest of the world. These plays and poems can thus be described as extant: a) because they still exist even though they were written a long time ago and b) it is thought he wrote more but that material has been lost.
Although Shakespeare himself seems to have been less than careful about his own manuscripts, not long after he died other people made sure that his work was collected and published and so much of it survived.
Excitingly, on 8 July 2020, a British Library blog announced “Shakespeare’s only surviving playscript now online”. Even then, the playscript contains the handwriting of a number of different people, and we only know that Shakespeare "probably" contributed because researchers had already been able to cross-match some of the writing with Shakespeare's signatures on other documents.
“Shakespeare's six extant signatures” appeared on legal documents and are likely to have survived because they were written on good-quality paper and stored carefully.
So, in this case, using 'extant' is fine – you can see that the signatures, and the playscript, have survived after hundreds of years, even though other things that Shakespeare might have written have been lost because the man himself didn’t value good document storage.
When it might be better to use an alternative word
In my work as a proofreader, I often see the word 'extant' in research material, typically in the literature review section. Indeed, phrases such as “the extant literature” or the “extant research” are common in a lot of previously published work and, as a result, other writers may regard 'extant' as a straightforward synonym for 'existing'.
Google adds to the confusion. When I searched for the definition of 'extant' today (9 June 2026), Google’s AI Overview informed me that:
Extant research refers to the currently available, existing body of academic or scholarly work on a specific topic. It is commonly used in literature reviews to establish what is already known and to highlight gaps the new study aims to fill.
This AI definition draws from examples it has found in academic writing, such as (my highlighting): Disaster Media Coverage and Psychological Outcomes: Descriptive Findings in the Extant Research, a 2014 paper in Current Psychiatry Reports.
Another paper, published in the American Journal of Community Psychology in 2001, contains the word in the first sentence of the abstract:
Most of the extant research on welfare reform has neglected to consider the experiences of families in rural settings...
As you can see above, there are plenty of real-world examples of authors using 'extant'. You could argue that the use of 'extant' is changing anyway and that US English is more comfortable using it as a synonym for 'existing'.
Nonetheless, there is the issue of register in the language you use in an academic context. To many readers, 'extant' can sound pretentious, old-fashioned or anachronistic in modern academic writing.
You are also highly unlikely to need the word 'extant' in a business setting. The nearest I can think of would be when referring to legacy systems. As you are probably aware, a legacy system often refers to a technology system/software that is outdated but still works and people in the organization use it because their day-to-day business can’t function without it.
Legacy systems remain in use usually because of the cost in time and money of replacing them and retraining personnel. This is despite legacy systems not integrating well with more modern technology and being likely to make the system/organization vulnerable to cyber-attacks. In this context, legacy systems exist (they are old but have survived), but you wouldn’t describe them as extant. For example, many businesses, particularly in the financial sector, still use a computer programming language called COBOL, the design of which started in 1959. Although many large companies were still developing new systems in COBOL up to 2006, this is now a legacy system. It is not referred to as an extant system.
A practical test of when to use 'extant' or not
In a literature review, for example, research can be described as 'extant' (i.e. having survived) if all the other research that was conducted has been lost for some reason.
If you are thinking of using 'extant' in a sentence, see if you can replace the word with 'surviving'. If you can, then you’re fine.
However, if you can replace 'extant' with 'current', 'existing' or 'available', then it’s usually better to use that alternative. You could even omit the word entirely – your writing will still make sense.
Remember the examples given earlier?
For the first: Disaster Media Coverage and Psychological Outcomes: Descriptive Findings in the Extant Research
I’m not going to say this is incorrect. For one thing, I can’t access the full paper but there is nothing in the abstract that suggests that previous research has not survived. The title could probably also state: Disaster Media Coverage and Psychological Outcomes: Descriptive Findings in the Available Research
Or (to ignore the issue of 'extant' completely): Disaster Media Coverage and Psychological Outcomes: Descriptive Findings in the Research
As a second example, here again is the first sentence of the abstract from that other paper: Most of the extant research on welfare reform has neglected to consider the experiences of families in rural settings.
Again, I’m not going to say this is wrong and I can’t access the full paper, but I can suggest the following: Most of the existing research on welfare reform has neglected to consider the experiences of families in rural settings.
Or omit the word: Most of the research on welfare reform has neglected to consider the experiences of families in rural settings.
To recap: there are differing views on when to use 'extant'. However, 'current', 'existing' and 'available' are perfectly acceptable words to use in academic or formal writing. You aren’t restricted to using 'extant'.