The Collaborative International Dictionary of English v.0.48:

Plan \Plan\, v. t. [imp. & p. p. Planned; p. pr. & vb. n.
   Planning.]
   1. To form a delineation of; to draught; to represent, as by
      a diagram.
      [1913 Webster]

   2. To scheme; to devise; to contrive; to form in design; as,
      to plan the conquest of a country.
      [1913 Webster]

            Even in penance, planning sins anew.  --Goldsmith.
      [1913 Webster]

WordNet (r) 3.0 (2006):

planned
    adj 1: designed or carried out according to a plan; "the planned
           outlays for new equipment" [ant: unplanned]
    2: planned in advance; "with malice aforethought" [syn:
       aforethought(ip), planned, plotted]

Moby Thesaurus II by Grady Ward, 1.0:

134 Moby Thesaurus words for "planned":
   advised, aimed, aimed at, all ready, all set, approaching, armed,
   armed and ready, arranged, blueprinted, booted and spurred,
   briefed, calculated, charted, coached, cocked, coming, conscious,
   considered, contemplated, contrived, cooked-up, cut out,
   cut-and-dried, cut-and-dry, deliberate, deliberated, designed,
   desired, destinal, destined, determined, devised, emergent,
   envisaged, envisioned, equipped, eventual, extrapolated,
   familiarized, fatal, fated, fatidic, figured, fixed, forthcoming,
   future, futuristic, good and ready, groomed, hereafter, hoped-for,
   imminent, in arms, in battle array, in readiness, in the bag,
   in the saddle, in the works, informed, intended, intentional,
   knowing, later, loaded, loaded for bear, mature, meant, meditated,
   methodized, mobilized, nearing, of design, on ice, on the agenda,
   on the anvil, on the calendar, on the carpet, on the docket,
   on the mark, on the tapis, organized, packed, plotted, prearranged,
   preconcerted, precontrived, predicted, premeditated, preordered,
   prepared, prepared and ready, prepped, primed, probable, projected,
   prophesied, proposed, prospective, provided, psyched up, purposed,
   purposeful, purposive, put-up, rationalized, ready,
   ready for anything, rigged, ripe, scheduled, schematized, schemed,
   set, set-up, shaped, stacked, strategetic, strategic, studied,
   sur le tapis, systematized, tactical, teleological, to come, to-be,
   ultimate, up in arms, vigilant, voluntary, well-prepared, willful,
   witting, worked out