1) (of land, climate) having not enough rain to grow plants etc. (arid)
2) not solidly built; not enough (insubstantial)
3) to pay no attention to (a person, thing); give no or not enough care to (a person, thing) (neglect)
4) an amount by which a supply etc is not enough (shortfall)
not adequate; not enough; (of a person) not able, skilled or strong enough
defective, insufficient, incompetent
insufficiently
insufficiently
not having enough workers to do the work
inadequate in work force