In*firm" , v. t. [L. infirmare : cf.
F. infirmer.]
To weaken; to enfeeble. [Obs.] Sir
W. Raleigh.
In*firm" (&ibreve;n*f&etilde;rm"), a. [L. infirmus: cf. F.
infirme. See In- not, and Firm, a.]
1. Not firm
or sound; weak; feeble; as, an infirm body; an infirm constitution.
A poor, infirm, weak, and despised old man.
Shak. 2.
Weak of mind or will;
irresolute; vacillating. "An infirm judgment." Burke.
Infirm of purpose!
Shak.
3. Not solid or stable; insecure; precarious.
He who fixes on
false principles treads or infirm ground.
South. Syn. --
Debilitated; sickly; feeble; decrepit; weak; enfeebled; irresolute;
vacillating; imbecile.