1. Born out of wedlock
   - misbegot, misbegotten, spurious 
2. Of no value or worth
   "I was caught in the bastardly traffic"
   - mean

See also: contemptible, illegitimate

• field tent
• field theory
• field thistle
• field trial
• field trip
• field winding
• field wormwood
• field-crop
• field-effect transistor
• field-emission microscope
• field-grade officer
• field-pea plant
• field-sequential color television
• field-sequential color television system
• field-sequential color TV
• field-sequential color TV system
• field-test
• fielder
• fielder's choice
• fieldfare
• fieldhand
• fielding
• fielding average
• fieldmouse
• Fields