The Collaborative International Dictionary of English v.0.48:

Ongoing \On"go`ing\, n.
   The act of going forward; progress; (pl.) affairs; business;
   current events.
   [1913 Webster]

         The common ongoings of this our commonplace world, and
         everyday life.                           --Prof.
                                                  Wilson.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

ongoing \on"go`ing\, a.
   Occurring at present; progressing; in progress; continuing;
   not past, completed, or future; as, an ongoing petition
   drive; an ongoing effort.
   [PJC]

WordNet (r) 3.0 (2006):

ongoing
    adj 1: currently happening; "an ongoing economic crisis" [syn:
           ongoing, on-going]

Moby Thesaurus II by Grady Ward, 1.0:

148 Moby Thesaurus words for "ongoing":
   Brownian movement, accidental, accompanying, acting, active, ado,
   advance, advancement, advancing, afloat, afoot, ameliorative,
   anabasis, angular motion, ascending, ascent, at work, axial motion,
   backflowing, backing, backward motion, bettering, career,
   ceaseless, circumstantial, climbing, constant, continual,
   continued, continuing, continuous, course, current, descending,
   descent, developing, development, doing, downward motion, drift,
   driftage, ebbing, endless, eventuating, evolving, flight, flow,
   flux, forward, forward motion, forward-looking, forwardal,
   forwarding, functional, functioning, furtherance, furthering,
   go-ahead, going, going on, growing, growth, happening, headway,
   improving, in exercise, in force, in hand, in operation, in play,
   in practice, in process, in the wind, in the works, inaction,
   incidental, interminable, looking up, march, meliorative, mending,
   mounting, moving, oblique motion, occasional, occurring, on,
   on foot, on the fire, on the lift, on the mend, oncoming, onrush,
   onward, onward course, operating, operational, passage, passing,
   perpetual, persistent, plunging, prevailing, prevalent, proceeding,
   proficiency, progress, progressing, progression, progressive,
   progressiveness, promotion, radial motion, random motion,
   reflowing, refluence, reflux, regression, relentless, resultant,
   retrogression, rising, rolling, rolling on, run, running, rush,
   set, sideward motion, sinking, soaring, sternway, stream,
   subsiding, successive, taking place, traject, trajet, travel,
   trend, unbroken, under way, unending, unfolding, uninterrupted,
   upward motion, way, working