Sturdy vs Undefined - What's the difference?

As adjectives the difference between sturdy and undefined

is that sturdy is of firm build; stiff; stout; strong while undefined is lacking a definition or value.

is a disease in sheep and cattle, marked by great nervousness, or by dullness and stupor.

(er)

Of firm build; stiff; stout; strong.

a sturdy oak tree

* Sir H. Wotton

He was not of any delicate contexture; his limbs rather sturdy than dainty.

Solid in structure or person.

It was a sturdy building, able to withstand strong winds and cold weather.

The dog was sturdy and could work all day without getting tired.

(obsolete) Foolishly obstinate or resolute; stubborn.

* Hudibras

This must be done, and I would fain see / Mortal so sturdy as to gainsay.

* Atterbury

A sturdy , hardened sinner shall advance to the utmost pitch of impiety with less reluctance than he took the first steps.

Resolute, in a good sense; or firm, unyielding quality.

a man of sturdy piety or patriotism

(-)

A disease in sheep and cattle, marked by great nervousness, or by dullness and stupor.

(wikipedia undefined) (-)

Lacking a definition or value.

(mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.

The result of division by zero is undefined .

* defined