1. Related to or along a diameter
   - diametral, diametric 
2. Characterized by opposite extremes; completely opposed
   "diametrical points of view"
   - diametric, opposite, polar

See also: diameter, different

• slaked lime
• slalom
• slam
• slam dance
• slam dancing
• slam on
• slam-bang
• slam-dunk
• slammer
• slander
• slanderer
• unbalconied
• unbanded
• unbaptised
• unbaptized
• unbar
• unbarred
• unbarreled
• unbarrelled
• unbearable
• unbearably
• unbearded
• unbeatable
• unbeaten
• unbecoming