in-effective (adjective) ineffective: useless
Detalii: ineffectual refers to a general or habitual lack of success in the carrying out of one's projects; ineffective refers to a specific or definite failure to perform a task or accomplish a purpose
Sinonime: absurd, cretinous,
daft, foolish, half-witted,
idiotic,
inane,
moronic, silly,
sophomoric,
stupidAntonime: effective