[1] : The Collaborative International Dictionary of English v.0.48

needful \need"ful\ n=ed"f.ul, a.
   1. full of need; in need or want; needy; distressing.
      archaic --chaucer.
      1913 webster

            the needful time of trouble.          --bk. of com.
                                                  prayer.
      1913 webster

   2. necessary for supply or relief; requisite.
      1913 webster

            all things needful for defense abound. --dryden.
      1913 webster -- need"fully, adv. -- need"fulness,
      n.
      1913 webster
see also:
need"fully need"fulness 

[2] : WordNet (r) 2.0

needful
     adj : necessary for relief or supply; "provided them with all
           things needful" syn: needed, required, requisite
see also:
needed required requisite 

[3] : Moby Thesaurus II by Grady Ward, 1.0

27 moby thesaurus words for "needful":
   called for, cardinal, essential, fundamental, imperative,
   indicated, indispensable, irreducible, irreductible, irreplaceable,
   mazuma, moolah, necessary, needed, ooftish, pelf, prerequisite,
   required, requisite, rhino, rocks, scratch, shekels, smash,
   unforgoable, vital, wanted

Needful >> N Words
Needful, definition of term: Needful
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