inefficient

English Thesaurus

1. lacking the ability or skill to perform effectively; inadequate (adj.all)

similar	:	incompetent,
definition	:	not qualified or suited for a purpose (adj.all)

2. not producing desired results; wasteful (adj.all)

similar	:	uneconomical, wasteful,
definition	:	inefficient in use of time and effort and materials (adj.all)

also	:	incompetent,
definition	:	not qualified or suited for a purpose (adj.all)

also	:	ineffective, ineffectual, uneffective,
definition	:	not producing an intended effect (adj.all)

3. lacking the ability or skill to perform effectively; inadequate (adj.all)

derivation	:	ineffectiveness, ineffectuality, ineffectualness,
definition	:	lacking the power to be effective (noun.attribute)

derivation	:	inefficiency,
definition	:	unskillfulness resulting from a lack of efficiency (noun.cognition)

4. not producing desired results; wasteful (adj.all)

antonym	:	efficient,
definition	:	being effective without wasting time or effort or expense (adj.all)

derivation	:	inefficiency,
definition	:	unskillfulness resulting from a lack of efficiency (noun.cognition)

5. lacking the ability or skill to perform effectively; inadequate (adj.all)

derivation	:	ineffectiveness, ineffectuality, ineffectualness,
definition	:	lacking the power to be effective (noun.attribute)

derivation	:	inefficiency,
definition	:	unskillfulness resulting from a lack of efficiency (noun.cognition)

6. not producing desired results; wasteful (adj.all)

antonym	:	efficient,
definition	:	being effective without wasting time or effort or expense (adj.all)

derivation	:	inefficiency,
definition	:	unskillfulness resulting from a lack of efficiency (noun.cognition)