limpid (en)

(adjective) marked by transparency; pellucid / (adjective) clear and simple in style / (adjective) absolutely serene and untroubled

promontory (en)

(noun) a high point of land or rock projecting into a body of water / (noun) a prominent mass of land overlooking or projecting into a lowland / (noun) a bodily prominence

superannuated (en)

(adjective) outmoded old-fashioned / (adjective) incapacitated or disqualified for active duty by advanced age / (adjective) older than the typical member of a specified group / (verb) to make, declare, or prove obsolete or out-of-date / (verb) to retire and pension because of age or infirmity / (verb) to become retired / (verb) to become antiquated