underwarm

From under- +‎ warm.

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underwarm (third-person singular simple present underwarms, present participle underwarming, simple past and past participle underwarmed)

1. (transitive) To warm insufficiently; To fail to provide with the expected or required amount of heat.

   Antonym: overwarm

   Near-synonym: underheat

   • 1907, B. L. Hutchins, Home Work and Sweating: The Causes and the Remedies, page 18:

     Some workers, now underpaid, underfed, underwarmed, and badly clothed, would quickly respond to improved conditions and pay, and would in a short time become really more efficient.

   • 1921, United States. Congress, Congressional Record, page 8452:

     All that need be done is to increase the purchasing power of the millions of impoverished, underfed, underclothed, underwarmed, and underhoused men, women, and children in our industrial centers and the demand will follow.

   • 1925, Percy Alfred Scholes, The Listener's History of Music, page 164:

     Underfed and underwarmed, he had a hard time of it, and one may guess that his resistance to disease in after-life was weakened by the almost Dotheboys Hall conditions, but those were days when almost all schools 'did the boys'.

   • 1978, John C. Sinclair, Temperature Regulation and Energy Metabolism in the Newborn, page x:

     but the results of slight underwarming were not immediately obvious.

   • 2003, James M. Griffin, Global Climate Change: The Science, Economics and Politics, page 249:

     Yet a substantial 'underwarming' still remains compared to model estimates […]

   • 2012, Frederick A. Hensley, Donald Eugene Martin, Glenn P. Gravlee, A Practical Approach to Cardiac Anesthesia, page 238:

     Using nasopharyngeal temperature to avoid hyperthermia and rectal/bladder temperature to avoid underwarming may be the safest technique.

   • 2016, Brian Michael Bendis, Powers: The Secret History of Deena Pilgrim:

     And the remains of Joe's dinner—an underwarmed hamburger paired with shoestring fries—dotted the landscape in front of the stove, overturned in their too-brief struggle.

2. (transitive) To heat from below.
   • 1856, H.G. Bowyer, “General Report of the Year 1855, by Her Majesty's Inspector of Schools”, in Minutes of the Committee of Council on Education, page 63:

     But I have been unable to recommend the appointment of the former on account of the rule introduced by the circular of the 14th of January 1854, —that no pupil-teacher should be allowed in schools where the floors were not either boarded or underwarmed.

underwarm (comparative more underwarm, superlative most underwarm)

1. Insufficiently warm.

   Antonym: overwarm

   Coordinate terms: lukewarm, underheated

   • 2020, Rebecca Chastain, A Fistful of Magic:

     Overdressed and underwarm. But when the boss gives me an assignment, I go.