Source : Webster's Revised Unabridged Dictionary (1913)

Manful \Man"ful\, a.
   Showing manliness, or manly spirit; hence, brave, courageous,
   resolute, noble. `` Manful hardiness.'' --Chaucer. --
   {Man"ful*ly}, adv. -- {Man"ful*ness}, n.

Source : WordNet®

manful
     adj 1: possessing qualities befitting a man [syn: {manly}, {manlike}]
            [ant: {unmanly}]
     2: characteristic of a man; "a deep male voice"; "manly sports"
        [syn: {male}, {manlike}, {manly}, {virile}]