a. Obs. [f. L. vicissitūdin-, stem of vicissitūdo: see -ARY.]
1. Marked by alternation; coming alternately or by turns.
1624. Donne, Devotions, etc. (ed. 2), 296. Wee say the dayes of man [are] vicissitudinary, as though he had as many good days, as ill.
1640. Bp. Hall, Episc., II. xvii. 180. This presidence is not perpetuall, but only for the time and vicissitudinary.
1650. Descr. Future Hist. Europe, 6. A vicissitudinary time of Affliction and Ease, Persecution and rest, pure Doctrine and Heresies, is signified.
2. Reciprocal, responsive. rare1.
1629. Maxwell, trans. Herodian (1635), 92. When a mans Friend hath (first) obliged him by Signall Offices; if hee shew not all vicissitudinary Expressions of a thankefull Heart [etc.].