Advanced Vocabulary Starting with "U"

52 entries

• ubiquitous Present, appearing, or found everywhere; seeming to be in all places at once.
• ultrasonic Relating to sound waves with a frequency above the upper limit of human heari...
• ultrasound A diagnostic imaging technique that uses high-frequency sound waves to produc...
• ultraviolet Electromagnetic radiation with wavelengths shorter than visible violet light ...
• umbrage Offence or annoyance, almost always used in the phrase 'take umbrage at,' mea...
• unanimous Fully agreed upon by all people involved; showing complete agreement with no ...
• unblemished Free from any mark of damage, disgrace, or imperfection; having a spotless re...
• unconventional Not based on or conforming to what is generally done or believed; different f...
• unctuous Excessively or insincerely polite, earnest, or flattering in a way that is oi...
• undermine To gradually weaken or damage something, such as a person's confidence, autho...
• underperform To perform less well than expected, whether in financial returns, academic re...
• underpin To support, justify, or form the basis of something; literally, to strengthen...
• underscore To emphasise or draw special attention to the importance of something; to hig...
• undershoot The extent to which a system's response falls short of its intended target or...
• understatement The presentation of something as being smaller, worse, or less important than...
• underwrite To accept financial responsibility for something, especially by guaranteeing ...
• undulate To move with a smooth, wave-like motion; to rise and fall in a gentle, contin...
• unequivocal Leaving no doubt; unambiguous and clear. An unequivocal statement or response...
• unequivocally In a way that leaves no doubt or room for misinterpretation; clearly, decisiv...
• unfathomable Impossible to understand or comprehend fully; incapable of being measured or ...
• unfettered Free from restraint, limitation, or control; unrestrained and unhindered in a...
• unilateral Performed by or affecting only one side, party, or group; done without the ag...
• unimpeachable Beyond doubt, reproach, or question; entirely trustworthy and impossible to c...
• unorthodox Contrary to what is usual, traditional, or accepted; unconventional in approa...
• unparalleled Having no equal or match; superior to anything else of its kind.
• unprecedented Never done, known, or experienced before; without previous example or parallel.
• unpropitious Not favourable or promising; indicating a poor likelihood of success, especia...
• unravel To investigate and solve a complex problem or mystery, or to come apart or di...
• unrelentingly Without any pause, respite, or diminution in force; continuing with unwaverin...
• unremitting Never relaxing or slackening; constant, persistent, and incessant.
• unscrupulous Having or showing no moral principles; willing to act dishonestly or unfairly...
• unsullied Not spoiled, damaged, or made impure; retaining original purity, cleanliness,...
• unsurpassed Better or greater than any other; not exceeded or excelled by anything.
• untarnished Not dulled, stained, or diminished in lustre or reputation; remaining bright ...
• untenable Not able to be maintained, defended, or justified; impossible to hold or sust...
• unwavering Steady and resolute; not wavering or becoming weaker in determination or comm...
• unwieldy Difficult to carry, manage, or handle because of size, shape, weight, or comp...
• unwitting Not aware of the full facts or consequences of a situation; done without know...
• unwittingly Without being aware of what one is doing or the full consequences of one's ac...
• uphold To confirm, maintain, or defend a principle, law, decision, or standard, espe...
• upright Strictly honest and honourable in character and behaviour; also, in a vertica...
• uprising A spontaneous or organised act of resistance or revolt by a group of people a...
• uptime The period during which a computer system, server, or service is operational ...
• upwelling The rising of cold, nutrient-rich water from the deep ocean towards the surfa...
• urbane Suave, refined, and sophisticated in manner; displaying the effortless polish...
• urbanisation The process by which an increasing proportion of a population moves from rura...
• urology The branch of medicine concerned with the urinary tract in both sexes and the...
• usufruct The legal right to use and enjoy the benefits of another person's property fo...
• usurious Relating to or involving the practice of lending money at unreasonably or ill...
• usurp To seize and hold power, position, or authority illegally or by force, withou...
• utilitarian Relating to utilitarianism, the ethical theory that the best action is the on...
• utopian Relating to or aiming for a perfect society in which everything is ideal; ide...