Incapable of reproducing.

synoniemen: infertile, sterile.

Roget 169: unproductive, acarpous^†, inoperative, barren, addled, infertile, unfertile, unprolific^†, arid, sterile, unfruitful, infecund^†; sine prole; fallow; teemless^†, issueless^†, fruitless; unprofitable etc. (useless) 645; null and void, of no effect.    ... meer laten zien