What does contractable mean?
Contractable is an adjective describing something capable of being contracted — most often a disease that can be caught through exposure to an infectious agent. A doctor might describe influenza as 'highly contractable,' meaning it passes easily from person to person. The word derives from the verb 'to contract,' itself rooted in the Latin contrahere, 'to draw together.' It should not be confused with its near-twin 'contractible,' which instead describes something able to shrink or be reduced in size; the two are distinguished by a single letter and a completely different meaning. Contractable appears chiefly in medical and public-health contexts, where precision about how illnesses spread matters, and occasionally in legal writing to describe terms capable of being made binding. It is a relatively rare word, but a useful one when the distinction between catching something and shrinking something needs to be exact.
adjectiveCapable of being contracted, especially of a disease that can be caught or acquired from exposure to an infectious agent.
- (Of a disease) able to be caught or contracted by exposure to infection.
- (Less commonly) capable of being entered into or drawn up as a formal agreement.
"Measles is highly contractable, which is why vaccination rates matter so much in schools."
"Chickenpox remains one of the most contractable childhood illnesses in unvaccinated households."
"The parties confirmed that the obligations set out in the letter were not contractable until both sides had signed."
Swap one letter — 'i' for 'a' — and you change 'shrinkable' into 'catchable': contractible versus contractable is one of English's sneakiest near-miss pairs.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of contractable
Contractable derives from the verb 'to contract,' from Latin contrahere ('com-' + 'trahere'), meaning to draw together or draw in. The suffix '-able' marks the capacity to undergo or receive the action of the verb, giving the sense 'capable of being contracted.' Its most familiar use developed in medical English, applied to diseases transmissible by infection. It shares this Latin root with words such as contraction, contractor, and contractile.
Easily confused with contractable
'Contractible' means capable of shrinking or being drawn into smaller compass, while 'contractable' refers to the ability to catch something such as a disease.