| amateurish(inadequate, useless, immoral, inept, unable) |
| barren(inadequate, limited, feeble, useless, vain) |
| bungling(adjective, inadequate, useless, incompetent, unqualified) |
| counterproductive |
| disqualified(inadequate, useless, incompetent, unqualified, inept) |
| half ass |
| hopeless(adjective, weak, useless, incompetent, unqualified) |
| maladroit(adjective, inadequate, useless, unqualified, clumsy) |
| prodigal(adjective, well, extravagant, incompetent, lavish) |
| profitless |
| sterile |
| talentless(adjective, educated, overall, well-informed) |
| trifling |
| ungifted(adjective, educated, overall, well-informed) |
| unproficient(adjective, inadequate, useless, incompetent, unqualified) |
| unsuitable(adjective, weak, feeble, immoral, unprincipled) |
| untalented(adjective, educated, overall, well-informed) |
| amateur(adjective, inadequate, useless, incompetent, unqualified) |
| artless(incompetent, clumsy, inexpert) |
| bumbling(adjective, incompetent, clumsy, inexpert) |