a.
I am a soldier and unapt to weep. Shak. [ 1913 Webster ]
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a. [ Pref. in- not + apt: cf. F. inapte. Cf. Inept. ] Unapt; not apt; unsuitable; inept. --
n. [ In- + aptitude: cf. F. inaptitude. Cf. Ineptitude. ] Lack of aptitude. [ 1913 Webster ]