WordRel.com

• having a strong physiological or chemical effect

  synonym	stiffstrong
  antonym	impotent
  derivation	potency
  also	effectiveeffectualefficaciousfertilepowerful
  attribute	effectivenesspotencystrength
  similar	equipotentmultipotent

• (of a male) capable of copulation

  synonym	virile
  antonym	impotent
  derivation	potency

• having great influence

  synonym	powerful
  similar	influential

• having or wielding force or authority

  synonym	strong
  derivation	potency
  similar	powerful