'Debilitating' definitions:

Definition of 'debilitating'

From: WordNet
adjective
Impairing the strength and vitality [ant: invigorating]

Definition of 'Debilitating'

From: GCIDE
  • Debilitate \De*bil"i*tate\, v. t. [imp. & p. p. Debilitated; p. pr. & vb. n. Debilitating.] [L. debilitatus, p. p. of debilitare to debilitate, fr. debilis. See Debility.] To impair the strength of; to weaken; to enfeeble; as, to debilitate the body by intemperance. [1913 Webster]
  • Various ails debilitate the mind. --Jenyns. [1913 Webster]
  • The debilitated frame of Mr. Bertram was exhausted by this last effort. --Sir W. Scott. [1913 Webster]

Definition of 'debilitating'

From: GCIDE
  • debilitating \debilitating\ adj. causing weakness. Opposite of invigorating. [WordNet 1.5]