WordWeb Online

1. Offensive to good taste especially in sexual matters
   "an earthy but not indecent story"; "an indecent gesture"
    
2. Not in keeping with accepted standards of what is right or proper in polite society
   "was buried with indecent haste";
   - indecorous, unbecoming, uncomely, unseemly, untoward
    
3. Offending against sexual mores in conduct or appearance
   "a bathing suit considered indecent by local standards"

See also: coarse, crude, dirty, earthy, gross, Hollywood, immodest, improper, indecorous, indelicate, obscene, ripe [informal], salty, suggestive, vulgar

Antonym: decent

Encyclopedia: Indecent