'Unfruitful' in the Bible

'And that sown toward the thorns, this is he who is hearing the word, and the anxiety of this age, and the deceitfulness of the riches, do choke the word, and it becometh unfruitful.

and the anxieties of this age, and the deceitfulness of the riches, and the desires concerning the other things, entering in, choke the word, and it becometh unfruitful.

for if I pray in an unknown tongue, my spirit doth pray, and my understanding is unfruitful.

and have no fellowship with the unfruitful works of the darkness and rather even convict,

and let them learn -- ours also -- to be leading in good works to the necessary uses, that they may not be unfruitful.

for these things being to you and abounding, do make you neither inert nor unfruitful in regard to the acknowledging of our Lord Jesus Christ,