What is the meaning of Spasmodic?

Of or relating to a spasm; resembling a sudden contraction of the muscles.

Convulsive; consisting of spasms.

Intermittent or fitful; occurring in abrupt bursts.

Erratic or unsustained.

Of or relating to the spasmodic poets, a group of British Victorian poets who wrote introspective drama in verse.

A medicine for suppressing spasms.

spasmodic

Source: wiktionary.org