1. Characterized by wickedness or immorality; SYN. immoral.
2. Having undesirable or negative qualities
3. Capable of harming
4. Feeling physical discomfort or pain; ('tough' is occasionally used colloquially for 'bad' as in); SYN. tough.
5. Below average in quality or performance
6. Keenly sorry or regretful; SYN. sorry.
7. Very intense; SYN. big.
8. Reproduced fraudulently; SYN. forged.
9. Physically unsound or diseased; SYN. unfit, unsound.
10. Not working properly; SYN. defective.
11. Not financially safe or secure; SYN. insecure, risky, high-risk, speculative.
12. Not capable of being collected; SYN. uncollectible.
13. (Of foodstuffs) Not in an edible or usable condition; SYN. spoiled, spoilt.
14. (Linguistics; informal) Incorrect; not conforming to standard usage + prikaži više

ETYM Latin defectivus: cf. French défectif. Related to Defect.
1. Having a defect; SYN. faulty.
2. Markedly subnormal in structure or function or intelligence or behavior.

ETYM Latin deficiens, -entis, p. pr. of deficere to be wanting. Related to Defect.
1. Falling short of some prescribed norm; SYN. inferior, substandard.
2. Inadequate in amount or degree; SYN. lacking, wanting.

ETYM Latin imperfectus: pref. im- not + perfectus perfect: cf. F imparfait, whence Old Eng. imparfit. Related to Perfect.
Not perfect; defective or inadequate.

ETYM Latin incompletus: cf. French incomplet. Related to In- not, and Complete.
1. Not yet finished; SYN. uncompleted.
2. Not complete or total; not completed; SYN. uncomplete.
3. (Botany) Lacking one or more of the four whorls of the complete flower--sepals or petals or stamens or pistils.