(philosophy) Of or pertaining to the Danish philosopher Søren Kierkegaard (1813–1855) or his existentialist philosophy.

plural of Castiglione

(colloquial) Drunk; intoxicated from alcohol, staggering. / Staggered in time and space. / Moving by turning over and over about an axis. / Extending in gentle undulations (of the landscape).

Considering what limited worth this advice, opinion, or suggestion might have for you; used to soften the presentation of unsolicited advice or information that may not be relevant.