'Loath' definitions:

Definition of 'loath'

From: WordNet
adjective
Unwillingness to do something contrary to your custom; "a reluctant smile"; "loath to admit a mistake" [syn: loath, loth, reluctant]
adjective
(usually followed by `to') strongly opposed; "antipathetic to new ideas"; "averse to taking risks"; "loath to go on such short notice"; "clearly indisposed to grant their request" [syn: antipathetic, antipathetical, averse(p), indisposed(p), loath(p), loth(p)]

Definition of 'Loath'

From: GCIDE
  • Loath \Loath\ (l[=o]th), a. [OE. looth, loth, AS. l[=a][eth] hostile, odious; akin to OS. l[=a][eth], G. leid, Icel. lei[eth]r, Sw. led, G. leiden to suffer, OHG. l[imac]dan to suffer, go, cf. AS. l[imac][eth]an to go, Goth. leipan, and E. lead to guide.]
  • 1. Hateful; odious; disliked. [Obs.] --Chaucer. [1913 Webster]
  • 2. Filled with disgust or aversion; averse; unwilling; reluctant; as, loath to part. [1913 Webster]
  • Full loth were him to curse for his tithes. --Chaucer. [1913 Webster]
  • Why, then, though loath, yet must I be content. --Shak. [1913 Webster]