Difference between Inefficient and Unsound

INEFFICIENT vs UNSOUND: ADJECTIVE

Not producing desired results; wasteful
Not efficient, as.
Not producing the intended result; ineffective.
Wasteful of time, energy, or materials.
Not efficient; not producing the effect intended or desired, or achieiving the effect by unnnecessary and excessive expenditure of resources; inefficacious.
Incapable of, or indisposed to, effective action; habitually slack or remiss; effecting little or nothing
Lacking the ability or skill to perform effectively; inadequate

Not efficient; not producing or not capable of producing the desired effect; incapable; incompetent; inadequate: as, inefficient measures; an inefficient police.
Not producing desired results
Wasteful
Inadequate

Ineffectual, Useless, Unwieldy, Uneconomic, Unworkable, Counterproductive, Efficient, Inadequate, Unproductive, Cumbersome, Inefficiency, Incompetent, Uneconomical, Ineffective, Wasteful

Corroded, Speculative, Insecure, Dilapidated, Rotted, Bad, Rotten, Unhealthy, Insane, Unreliable, Risky, Invalid, Fallacious, Unstable, Unfit

Ineffectual, Useless, Unwieldy, Uneconomic, Unworkable, Counterproductive, Efficient, Inadequate, Unproductive, Cumbersome, Inefficiency, Incompetent, Uneconomical, Ineffective, Wasteful

Corroded, Speculative, Insecure, Dilapidated, Rotted, Bad, Rotten, Unhealthy, Insane, Unreliable, Risky, Invalid, Fallacious, Unstable, Unfit

This will be very inefficient for the company.
Courts remained inefficient and routinely subject to corruption.
For example, most inefficient subject is Computer architecture.
Such externalities usually involve inefficient use of resources.
Admiral was surrounded by woefully inefficient legacy carriers.
Generic screening is inefficient in identifying quality problems.
Respondents concur that processes were inefficient and ineffective.
Economic practices inefficient in the global market disappear.
Due to inefficient logisticssolutions production process is extended.
Inefficient tax systems: ETR can reduce the economic costs of the tax system, which is especially desirable for countries with relatively inefficient tax systems.

We find this approach unsound for two reasons.
However, valid arguments may be sound or unsound.
But such a view would also be unsound.
The petitioner has been of an unsound mind.
Proposed Tax Legislation Is Economically Unsound and Confusing.
As the concrete deteriorates, it becomes structurally unsound.
Unsound closes with a spotlight on Bocian Records.
Applicant must not be of an unsound mind.
This diffusion of responsibility is unsound and unwise.
Persons of unsound mind The agreement with a person of unsound mind in India, is void.