nonsensical

comparative more nonsensical · superlative most nonsensical · alternative rare nonsensic · alternative non-sensical

1. Without sense; absurd.

   Conspiracy theories have become so mainstream that they are even prompting nonsensical legislation. Earlier this month, Louisiana lawmakers sent a bill to the state’s governor seeking to ban “chemtrails” – which don’t actually exist.

   2025 June 17, Arwa Mahdawi, “What SJP’s selfie trick tells us about the terrifying rise of conspiracy theories”, in The Guardian, →ISSN

   2 more examples

   Well, her very foolish grandmother has mixed herself up in some nonsensical correspondence with the court of St. Germains; or, rather, has let herself be made a tool by Mr. Trevanion, who, I am happy to say, is not Ethel's husband; they arrested him just in time.

   1837, L[etitia] E[lizabeth] L[andon], “Prudence in Politics”, in Ethel Churchill: Or, The Two Brides. […], volume II, London: Henry Colburn, […], →OCLC, page 179

   President Donald Trump’s presidential memorandum ordering an investigation of Joe Biden’s cognitive decline and his use of the autopen […] is also nonsensical fan service, amplifying addled MAGA conspiracy theories that contend, with a straight face, that Biden was really a robotic clone.

   2025 June 7, Paul Rosenzweig, “The Biden Investigation Is a Path to Even Greater Lawlessness”, in The Atlantic, archived from the original on 07 Jun 2025

   Synonyms: meaningless, unmeaning, absurd, foolish, irrational, preposterous · Antonyms: comprehensible, commonsensical, logical, rational, sensible, sensical