unsound

adj 1: not in good condition; damaged or decayed; "an unsound

foundation" [ant: {sound}]

2: not sound financially; "unsound banking practices" [ant: {sound}]

3: containing or based on a fallacy; "fallacious reasoning";

"an unsound argument" [syn: {fallacious}]

4: suffering from severe mental illness; "of unsound mind"

[syn: {mentally ill}, {unstable}]

5: physically unsound or diseased; "has a bad back"; "a bad

heart"; "bad teeth"; "an unsound limb"; "unsound teeth"

[syn: {bad}, {unfit}]

6: of e.g. advice

7: in deplorable condition; "a street of bedraggled tenements";

"a broken-down fence"; "a ramshackle old pier"; "a

tumble-down shack" [syn: {bedraggled}, {broken-down}, {dilapidated},

{ramshackle}, {tumble-down}]

sound

1. {audio}.

2. An {inference system} A is sound with respect to

another system B if A can only reach conclusions which are

true in B. A {type inference} system is considered sound with

respect to a {semantics} if the type inferred for an

expression is the same as the type inferred for the meaning of

that expression under the semantics.

The dual to soundness is {complete}ness.

(1995-03-01)