active

nouns

chemical agent capable of activity
the voice used to indicate that the grammatical subject of the verb is performing the action or causing the happening denoted by the verb
"`The boy threw the ball' uses the active voice"
a person who is a participating member of an organization
"the club issues a list of members, both the actives and the retirees"
is a type of (narrower)
a human being
"there was too much for one person to do"

adjectives

tending to become more severe or wider in scope
"active tuberculosis"
is derived from
is derived from
antonym
is similar to
advancing in severity
"progressive paralysis"
domain category
the branch of medical science that studies the causes and nature and effects of diseases
engaged in or ready for military or naval operations
"on active duty"; "the platoon is combat-ready"; "review the fighting forces"
is derived from
is derived from
disposed to take action or effectuate change
"a director who takes an active interest in corporate operations"; "an active antagonism"; "he was active in drawing attention to their grievances"
is derived from
is derived from
antonym
is similar to
advocating or engaged in activism
is similar to
involving active participation
"he's a hands-on manager"; "hands-on operations"
is similar to
(of a policy or person or action) controlling a situation by causing something to happen rather than waiting to respond to it after it happens
is an attribute of
the trait of being active; moving or acting rapidly and energetically
"the level of activity declines with age"
taking part in an activity
"an active member of the club"; "he was politically active"; "the participating organizations"
is derived from
is derived from
characterized by energetic activity
"an active toddler"; "active as a gazelle"; "an active man is a man of action"
is derived from
is derived from
antonym
is similar to
on the move
"up and about"; "the whole town was astir over the incident"
is similar to
vigorously active
"an acrobatic dance"; "an athletic child"; "athletic playing"; "gymnastic exercises"
is similar to
moving quickly and lightly
"sleek and agile as a gymnast"; "as nimble as a deer"; "nimble fingers"; "quick of foot"; "the old dog was so spry it was halfway up the stairs before we could stop it"
is similar to
marked by excited activity
"a hot week on the stock market"
is similar to
more active than normal
"a hyperactive child"
is similar to
(of a person) very busy and active
"is always on the go"
is similar to
appropriate for sport or engagement in a sport
see also
full of life and energy
"a lively discussion"; "lively and attractive parents"; "a lively party"
see also
possessing or exerting or displaying energy
"an energetic fund raiser for the college"; "an energetic group of hikers"; "it caused an energetic chemical reaction"
is an attribute of
the trait of being active; moving or acting rapidly and energetically
"the level of activity declines with age"
exerting influence or producing a change or effect
"an active ingredient"
is derived from
is derived from
antonym
is similar to
rendered active; e.g. rendered radioactive or luminescent or photosensitive or conductive
is similar to
opposing or neutralizing or mitigating an effect by contrary action
is similar to
capable of lowering the surface tension of a liquid; used especially of detergents
full of activity or engaged in continuous activity
"an active seaport"; "an active bond market"; "an active account"
is derived from
is derived from
antonym
is similar to
very active
"doing a brisk business"
is similar to
full of energetic and noisy activity
"a bustling city"
is similar to
crowded with or characterized by much activity
"a very busy week"; "a busy life"; "a busy street"; "a busy seaport"
is similar to
in full operation
"a going concern"
is similar to
ready for business
"the stores are open"
is similar to
(of movements) light and confidently active
"he walked away with a springy step"
in operation
"keep hope alive"; "the tradition was still alive"; "an active tradition"
is derived from
is derived from
(of the sun) characterized by an increased occurrence of sunspots and flares and radio emissions
is derived from
is derived from
antonym
domain category
the branch of physics that studies celestial bodies and the universe as a whole
expressing that the subject of the sentence has the semantic function of actor: "Hemingway favors active constructions"
antonym
domain category
the branch of linguistics that deals with syntax and morphology (and sometimes also deals with semantics)
(used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')) expressing action rather than a state of being
antonym
(of e.g. volcanos) capable of erupting
antonym
is similar to
capable of erupting
"a live volcano"; "the volcano is very much alive"
see also
exerting force or containing energy
"live coals"; "tossed a live cigarette out the window"; "got a shock from a live wire"; "live ore is unmined ore"; "a live bomb"; "a live ball is one in play"
(of e.g. volcanos) erupting or liable to erupt
"active volcanos"
is derived from
is derived from
antonym
is similar to
actively spewing out lava
"a geyser is an intermittently eruptive hot spring"
domain category
a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt
is an attribute of
the state of being active
"his sphere of activity"; "he is out of action"
engaged in full-time work
"active duty"; "though past retirement age he is still active in his profession"
is derived from
is derived from
antonym
is similar to
(military) set up and placed on active assignment
"a newly activated unit"