STRENUOUS Synonyms

• requiring full use of your abilities or resources

• stimulating interest or thought

• disturbingly provocative

• requiring more than usually expected or thought due; especially great patience and effort and skill

• not easy; requiring great physical or mental effort to accomplish or comprehend or endure

• hard to control

• having a debilitating effect

• producing exhaustion

• characterized by effort to the point of exhaustion; especially physical effort

• tending to give force or emphasis

• of agriculture; intended to increase productivity of a fixed area by expending more capital and labor

• a modifier that has little meaning except to intensify the meaning it modifies

• characterized by a high degree or intensity; often used as a combining form

• characterized by effort to the point of exhaustion; especially physical effort

• not easily borne; wearing

• rigidly accurate; allowing no deviation from a standard

• demanding strict attention to rules and procedures

• not easily borne; wearing

• producing exhaustion

• characterized by effort to the point of exhaustion; especially physical effort

• not given to gentleness or sentimentality

• physically toughened

• resistant to cutting or chewing

• someone who learned to fight in the streets rather than being formally trained in the sport of boxing

• an aggressive and violent young criminal

• a cruel and brutal fellow

• very difficult; severely testing stamina or resolution

• substantially made or constructed

• violent and lawless

• feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad')

• unfortunate or hard to bear

• making great mental demands; hard to comprehend or solve or believe

• the upward slope of a hill

• against difficulties

• upward on a hill or incline

• sloping upward

• so lacking in interest as to cause mental weariness

• characterized by intense emotion

• characterized by strong enthusiasm

• glowing or shining like fire

• having been learned or found or determined especially by investigation

• characterized by great determination

• devoting full strength and concentrated attention to

• determined or decided upon as by an authority

• strongly motivated to succeed

• having or showing keen interest or intense desire or impatient expectancy

• a high wave (often dangerous) caused by tidal flow (as by colliding tidal currents or in a narrow estuary)

• something of value given by one person to another to bind a contract

• characterized by a firm and humorless belief in the validity of your opinions

• sincerely earnest

• not distracted by anything unrelated to the goal