Webster's 1828 Dictionary
UNPRODUCTIVE
a. 1. Not productive; barren.
2. More generally, not producing large crops; not making profitable returns for labor; as unproductive land.
3. Not profitable; not producing profit or interest; as capital; as unproductive funds or stock.
4. Not efficient; not producing any effect.
UNPRODUCTIVENESS
n.The state of being unproductive; as land, stock, capital labor, etc.
New American Oxford Dictionary
unproductive
un pro duc tive |ˌənprəˈdəktiv ˌənprəˈdəktɪv | ▶adjective not producing or able to produce large amounts of goods, crops, or other commodities: unproductive land must be reforested. • (of an activity or period ) not achieving much; not very useful: unproductive meetings. DERIVATIVES un pro duc tive ly adverb, un pro duc tive ness noun
Oxford Dictionary
unproductive
un |pro ¦duct ¦ive |ʌnprəˈdʌktɪv | ▶adjective not producing or able to produce large amounts of goods, crops, or other commodities: unproductive land must be reforested. • (of an activity or period ) not achieving much; not very useful: unproductive meetings. DERIVATIVES unproductively adverb, unproductiveness noun
American Oxford Thesaurus
unproductive
unproductive adjective 1 unproductive soil: infertile, sterile, barren, arid, unfruitful, poor. ANTONYMS fertile. 2 unproductive meetings: fruitless, futile, vain, idle, useless, worthless, valueless, pointless, ineffective, ineffectual, unprofitable, unrewarding. ANTONYMS fruitful.
Oxford Thesaurus
unproductive
unproductive adjective 1 acidic, unproductive soil: sterile, barren, infertile, uncultivatable, unfruitful, poor, lifeless, lean, arid. ANTONYMS productive, fruitful. 2 a costly and unproductive bureaucracy: fruitless, futile, vain, idle, useless, worthless, valueless, pointless, ineffective, ineffectual, to no effect, impotent, inefficacious, unprofitable, unremunerative, unrewarding; rare otiose. ANTONYMS productive, efficient.
Sanseido Wisdom Dictionary
unproductive
ù n pro d ú c tive 形容詞 非生産的な, 収益のない ; «…を » 生み出さない «of » .