having a pattern of squares; checkered(def 3): a checked shirt.
Phonetics. (of a vowel) situated in a closed syllable (opposed to freedef 28).

Origin of checked

1375–1425; late Middle English. See check1, -ed2
Related formsun·checked, adjectivewell-checked, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unchecked

Contemporary Examples of unchecked

Historical Examples of unchecked

  • And at the end of that time it was as it had been before, and the flames raged on unchecked.

    The Hammer of Thor

    Charles Willard Diffin

  • A glance showed that the ship was holding to its course with unchecked speed.

    The Space Rover

    Edwin K. Sloat

  • It is not only the body that, unchecked, is inclined to be slothful.

  • Our passions are not in themselves evil, except when unchecked by reason.

  • This meant the uninterrupted and unchecked reign of the interests.

    The Plum Tree

    David Graham Phillips

British Dictionary definitions for unchecked



not prevented from continuing or growingunchecked population growth
not examined or inspected


without being stopped or hinderedthe virus could spread unchecked
without being examined or inspectedour luggage passed unchecked through customs



having a pattern of small squares
phonetics (of a syllable) ending in a consonant
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for unchecked

late 15c., from un- (1) "not" + past participle of check (v.).



early 15c., "ornamented with a checkered design," past participle adjective from check (v.2).

Online Etymology Dictionary, © 2010 Douglas Harper