1. Large in number or quantity (especially of discourse)
   "she took copious notes"
   - voluminous 
2. Affording an abundant supply
   "copious provisions"
   - ample, plenteous, plentiful, rich

See also: abundant, copiously, copiousness

• unseaworthy
• unsectarian
• unsecure
• unsecured
• unsecured bond
• unseductive
• unseeable
• unseeded
• unseeing
• unseeingly
• unseemliness
• unseemly
• unseen
• unsegmented
• unsegregated
• unselected
• unselective
• unselfconscious
• unselfconsciously
• unselfconsciousness
• unselfish
• unselfishly
• unselfishness
• unsensational
• unsensible