FASTID'IOUS, adjective [Latin fastidiousus, from fastidio, to disdain from fastus, haughtiness. See Heb.] 1. Disdainful; squeamish; delicate to a fault; over nice; difficult to please; as a fastidious mind or taste. 2. Squeamish; rejecting what is common or not very nice; suited with difficulty; as a fastidious appetite.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI