This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Yielding or containing plenty; affording ample supply: a copious harvest. See Synonyms at plentiful.

adj. Large in quantity; abundant: copious rainfall.

adj. Abounding in matter, thoughts, or words; wordy: "I found our speech copious without order, and energetic without rules” ( Samuel Johnson).

adj. Great in quantity or number, profuse, abundant; taking place on a large scale.

adj. Having an abundant supply.

adj. Full of thought, information, or matter; exuberant in words, expression, or style.

adj. Large in quantity or amount; plentiful; abundant; fruitful.

Abundant; plentiful; ample; large in quantity or number: as, copious supplies; a copious feast; copious notes of a lecture; copious rain.

Exhibiting abundance or fullness, as of thoughts or words.

Having an abundant supply; abounding; plenteous; liberal.

Synonyms Ample, Copious, Plenteous (see ample), rich, full, exuberant, overflowing, profuse.

adj. affording an abundant supply

adj. large in number or quantity (especially of discourse)

"The word copious means plentiful in number deriving from the Latin copiosus, from copia, meaning "abundance.""

abundant   

copiously    copiousness    copious meal   

exuberant    abundant    full    overflowing    rich    ample    plentiful    plenteous    fruitful    adequate   

abundant    plentiful    instructive    profuse    comprehensive    authentic    concise    voluminous    exhaustive    extensive