UNFRUITFUL
unfruitful
(adjective) not fruitful; not conducive to abundant production
Source: WordNet® 3.1
Etymology
Adjective
unfruitful (comparative more unfruitful, superlative most unfruitful)
(mostly, figurative) Not bearing fruit.
Antonyms
• fruitful
Source: Wiktionary
Un*fruit"ful, a.
Definition: Not producing fruit or offspring; unproductive; infertile;
barren; sterile; as, an unfruitful tree or animal; unfruitful soil;
an unfruitful life or effort.
– Un*fruit"ful*ly, adv.
– Un*fruit"ful*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition