ineffectual

Definition of Ineffectual in English :

not producing an intended effect

Example Sentences:
'an ineffective teacher'
'ineffective legislation'

2. futile, ineffectual, otiose, unavailing

producing no result or effect

Example Sentences:
'a futile effort'
'the therapy was ineffectual'
'an otiose undertaking'
'an unavailing attempt'

3. ineffective, ineffectual, unable

lacking in power or forcefulness

Example Sentences:
'an ineffectual ruler'
'like an unable phoenix in hot ashes'

WordNet Lexical Database for English. Princeton University. 2010.

Ineffectual

adjective

1.

having no effect or an inadequate effect

2.

lacking in power or forcefulness; impotent

an ineffectual ruler

adjective

not effectual; not producing or not able to produce the desired effect

adj.

1. Not producing the desired effect: an ineffectual treatment for indigestion. See Synonyms at futile.

2. Lacking forcefulness or effectiveness; inadequate or incompetent: an ineffectual ruler; ineffectual in dealing with a problem.