Ineffectual
Part of speech: adjective
Definition: unable or insufficient to produce effect; futile worthless weak; lacking forcefulness
Ineffective
Part of speech: adjective
Definition: not having the desired effect; ineffectuallacking in ability; incompetent or inadequate
Example sentence: If you show emotion in competition, temporarily, you'll be ineffective. If you're disciplined enough, you don't get down when you're behind, and you have a chance to create something positive.