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

gravely \grave"ly\, adv.
   in a grave manner.
   1913 webster

[2] : WordNet (r) 2.0

gravely
     adv 1: in a grave and sober manner; "he walked soberly toward the
            altar" syn: soberly, staidly
     2: to a severe or serious degree; "fingers so badly frozen they
        had to be amputated"; "badly injured"; "a severely
        impaired heart"; "is gravely ill"; "was seriously ill"
        syn: badly, severely, seriously
see also:
soberly staidly badly severely seriously 

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

36 moby thesaurus words for "gravely":
   bleakly, decorously, demurely, dismally, drearily, earnestly,
   formally, funereally, gloomily, grandly, grimly, heavily,
   imposingly, intensely, loftily, magisterially, majestically, nobly,
   regally, royally, sadly, sedately, seriously, severely,
   sober-mindedly, soberly, sobersidedly, solemnly, somberly,
   sombrously, staidly, stately, thoughtfully, venerably,
   with dignity, worthily

Gravely >> G Words
Gravely, definition of term: Gravely
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