any of the various theories or doctrines or philosophical systems that attempt to explain the phenomena of the universe in terms of some immanent force or energy
marked by imagination, initiative, and readiness to undertake new projects; "an enterprising foreign policy"; "an enterprising young man likely to go far"
possessing or exerting or displaying energy; "an energetic fund raiser for the college"; "an energetic group of hikers"; "it caused an energetic chemical reaction"
having or showing determination and energetic pursuit of your ends; "an aggressive businessman"; "an aggressive basketball player"; "he was aggressive and imperious; positive in his convictions"; "aggressive drivers"
characteristic of an enemy or one eager to fight; "aggressive acts against another country"; "a belligerent tone"
having or showing great excitement and interest; "enthusiastic crowds filled the streets"; "an enthusiastic response"; "was enthusiastic about taking ballet lessons"
characterized by energetic activity; "an active toddler"; "active as a gazelle"; "an active man is a man of action"
engaged in full-time work; "active duty"; "though past retirement age he is still active in his profession"
full of activity or engaged in continuous activity; "an active seaport"; "an active bond market"; "an active account"
tending to become more severe or wider in scope; "active tuberculosis"
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"
(of e.g. volcanos) erupting or liable to erupt; "active volcanos"
(of e.g. volcanos) capable of erupting
expressing action rather than a state of being; used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')
expressing that the subject of the sentence has the semantic function of actor: "Hemingway favors active constructions"
exerting influence or producing a change or effect; "an active ingredient"
of the sun; characterized by a high level activity in sunspots and flares and radio emissions
in operation; "keep hope alive"; "the tradition was still alive"; "an active tradition"
taking part in an activity; "an active member of the club"; "he was politically active"; "the participating organizations"
engaged in or ready for military or naval operations; "on active duty"; "the platoon is combat-ready"; "review the fighting forces"
characterized by or full of force or strength (often but not necessarily physical); "a forceful speaker"; "a forceful personality"; "forceful measures"; "a forceful plan for peace"
high level or degree; the property of being intense
the amount of energy transmitted (as by acoustic or electromagnetic radiation); "he adjusted the intensity of the sound"; "they measured the station's signal strength"
quick and energetic; "a brisk walk in the park"; "a lively gait"; "a merry chase"; "traveling at a rattling rate"; "a snappy pace"; "a spanking breeze"