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Webster 1828 Edition

Adj.

[in and effective.] Not effective; not producing any effect, or the effect intended; inefficient; useless.

The word of God,without the spirit,is a dead and ineffective letter.

Not able; not competent to the service intended; as ineffective troops; ineffective force.

Producing no effect.

ineffective ‎(comparative more ineffective, superlative most ineffective)

not having the desired effect; ineffectual

lacking in ability; incompetent or inadequate