PRECIP'ITOUS, adjective [Latin proeceps.] Very steep; as a precipitous cliff or mountain. 1. Headlong; directly or rapidly descending; as a precipitous fall. 2. Hasty; rash; heady. Advice unsafe, precipitous and bold.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI