adjacent may or may not imply contact but always implies absence of anything of the same kind in between.
a house with an adjacent garage
adjoining definitely implies meeting and touching at some point or line.
had adjoining rooms at the hotel
contiguous implies having contact on all or most of one side.
offices in all 48 contiguous states
juxtaposed means placed side by side especially so as to permit comparison and contrast.
a skyscraper juxtaposed to a church
Example Sentences
The Harrimans owned two large adjacent houses on N Street, one for themselves and one for Averell Harriman's pictures. Larry McMurtry, New York Times Review of Books, 23 Oct. 2003Hearing unexpected chords was linked to magnetic activity in a left-brain region known as Broca's area and in adjacent right-brain tissue. Bruce Bower, Science News, 5 May 2001The hallways, especially those adjacent to the satellite phone, were crowded with journalists, avid to cover the Taliban takeover … Michael Ignatieff, New Yorker, 24 Mar. 1997Digging further in that spot and five adjacent areas, they retrieved 19 skulls, five eggs, over 150 jaws and hundreds of teeth, limbs and bone bits. Natalie Angier, Time, 8 Oct. 1984 their house is adjacent to a wooded park
Recent Examples on the WebHis university has reshaped its curriculums over the past decade to reflect the changing market for culinary-adjacent jobs. Allison Salerno, BostonGlobe.com, 5 Sep. 2022 But listening back to what Whittingham said over about nine minutes with the media, some of it did come off as moral victory-adjacent. Josh Newman, The Salt Lake Tribune, 4 Sep. 2022 The bulk of those announcements have come from technology and tech-adjacent companies that scaled up their workforces to handle the sudden demand for their services during the pandemic. Alicia Wallace, CNN, 2 Sep. 2022 His university has reshaped its curriculums over the past decade to reflect the changing market for culinary-adjacent jobs. Allison Salerno, Washington Post, 30 Aug. 2022 For example, a courtyard off a bedroom might focus on landscaping, while a living room-adjacent courtyard might serve as an extension of seating. Lia Picard, WSJ, 25 Aug. 2022 Also in the alcohol-adjacent space, Blake Lively has Betty Buzz – cute microbottles of sparkling sodas that also work well when topped with booze. Kate Dingwall, Forbes, 25 Aug. 2022 The city has boomed with Bay Area and Central Coast transplants seeking more affordable housing in recent years, fueling new business, including the airport-adjacent Watsonville Hangar complex. Jordan Parker, Lauren Hepler, San Francisco Chronicle, 18 Aug. 2022 By contrast, most PC and PC-adjacent companies are predicting a collapse in demand over the next couple years, and many are already seeing it on their balance sheets. Andrew Cunningham, Ars Technica, 17 Aug. 2022 See More
Word History
Etymology
Middle English, borrowed from Anglo-French agisaunt, adjesant, borrowed from Latin adjacent-, adjacens, present participle of adjacēre "to lie near, border on," from ad-ad- + jacēre "to lie," stative derivative from the base of jacere "to throw" — more at jet entry 3