The Collaborative International Dictionary of English v.0.48:

Belated \Be*lat"ed\, a.
   Delayed beyond the usual time; too late; overtaken by night;
   benighted. "Some belated peasant." --Milton. --
   Be*lat"ed*ness, n. --Milton.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Belate \Be*late"\, v. t. [imp. & p. p. Belated; p. pr. & vb.
   n. Belating.]
   To retard or make too late. --Davenant.
   [1913 Webster]

WordNet (r) 3.0 (2006):

belated
    adj 1: after the expected or usual time; delayed; "a belated
           birthday card"; "I'm late for the plane"; "the train is
           late"; "tardy children are sent to the principal";
           "always tardy in making dental appointments" [syn:
           belated, late, tardy]

Moby Thesaurus II by Grady Ward, 1.0:

36 Moby Thesaurus words for "belated":
   antique, archaic, arrested, back, backward, behind time,
   behindhand, blocked, dated, delayed, delayed-action, detained,
   held up, hung up, in a bind, in abeyance, jammed, late, latish,
   moratory, never on time, obstructed, oldfangled, out of date,
   out-of-date, outdated, outmoded, overdue, passe, retarded, slow,
   stopped, tardy, unpunctual, unready, untimely