Festival vs Symposia - What's the difference?

As nouns the difference between festival and symposia

is that festival is while symposia is (symposium).

(wikipedia festival)

(en adjective)

Pertaining to a feast or feast-day. (Now only as the noun used attributively.)

* 1590 , Edmund Spenser, The Faerie Queene , II.iii:

the temple of the Gods [...] / Whom all the people decke with girlands greene, / And honour in their festiuall resort [...].

(en noun)

An event or community gathering, usually staged by a local community, which centers on some theme, sometimes on some unique aspect of the community.

In mythology, a set of celebrations in the honour of a god.

(head)

(symposium)

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(en-noun)

A conference or other meeting for discussion of a topic, especially one in which the participants make presentations.

(in ancient Greece ) A drinking party, especially one with intellectual discussion.