inable

Example:She is incapable of performing the task without extensive training.

Definition:Not having the required ability or skill to do something; unable.

Example:The software is inadaptable to newer operating systems.

Definition:Not able to be adapted or adjusted to new conditions or situations; unable to change.

Example:His efforts were ineffectual in changing the policy.

Definition:Not having the desired effect or producing no result; unable to be effective.

Example:The plan was infeasible given the budget constraints.

Definition:Not capable of being done or carried through; realistically impossible.

Example:The candidate was found incompetent for the position due to lack of experience.

Definition:Not having the necessary ability, skill, or knowledge to do a job or task; unable.

Example:These two systems are incompatible and cannot be used together.

Definition:Not able to live, work, or combine with something else; unable to exist together harmoniously.

Example:His actions were inconsistent with his words, making him unreliable.

Definition:Not agreed with or not following the same standards or principles; unable to maintain consistency.

Example:His story of walking across the sea was incredible until he had proven it to be true.

Definition:Not to be believed or refusing to be believed; unable to believe or find believable.

Example:The decline in the economy is inevitable with the current global market conditions.

Definition:Certain to happen; unable to be avoided.

Example:The old machinery was inefficient, making the production process slow.

Definition:Not achieving results as well as could be desired with the time, effort, or resources used; unable to be efficient.