ACTIVITY

activity

(noun) any specific behavior; “they avoided all recreational activity”

activeness, activity

(noun) the trait of being active; moving or acting rapidly and energetically; “the level of activity declines with age”

action, activity, activeness

(noun) the state of being active; “his sphere of activity”; “he is out of action”

activity

(noun) (chemistry) the capacity of a substance to take part in a chemical reaction; “catalytic activity”

Source: WordNet® 3.1

Etymology

Noun

activity (countable and uncountable, plural activities)

(uncountable) The state or quality of being active; activeness.

(countable) Something done as an action or a movement.

(countable) Something done for pleasure or entertainment, especially one involving movement or an excursion.

(grammar, semantics) The lexical aspect (aktionsart) of verbs or predicates that change over time and have no natural end point.

Usage notes

• Adjectives often used with "activity": increased, decreased, high, low, volcanic, seismic, eruptive, intellectual, physical, mental, spiritual, muscular, cerebral, favorite, recreational, practical, cultural, artistic, literary, musical, political, diplomatic, military, domestic, voluntary, missionary, chemical, optical, productive, reproductive, industrial, commercial, etc.

Synonyms

• See also activity

Antonyms

• rest

• passivity

Source: Wiktionary

Ac*tiv"i*ty, n.; pl. Activities. Etym: [Cf. F. activité, LL. activitas.]

Definition: The state or quality of being active; nimbleness; agility; vigorous action or operation; energy; active force; as, an increasing variety of human activities. "The activity of toil." Palfrey.

Syn.

– Liveliness; briskness; quickness.

Source: Webster’s Unabridged Dictionary 1913 Edition