a, b, d, e, f, g, l, n, t, i, y are letters that make 'indefatigability'
fatigability, AB, ab, IT, fa, ti, gab, at, defat, lit, fat, il, li, in, ability, DE, IL, IN, ND, At, Bi, Ga, In, Li, Nd, Ti, Ig, IgA, GA, Ab are words within 'indefatigability'
1 possible definitions for 'indefatigability'
Under this definition, indefatigability is a noun and has the following properties:
indefatigableness, tirelessness have the same meaning as 'indefatigability'
'indefatigability' can be a type of determination, purpose.
unflagging, tireless, indefatigable, hardworking, industrious, untiring, unwearying are derivatives of 'indefatigability'.