strenuous

• I hope Congress will extend to them the charity which they have failed to get from me Why, if a man who is not even mad, but only strenuous--strenuous about race-suicide--should come to me and try to get me to use my large political and ecclesiastical influence to get a bill passed by this Congress limiting families to twenty-two children by one mother, I should try to calm him down. —  Mark Twain's Speeches
• The safeguards are definite, and would seem to be sufficiently strenuous -- to Mr. Sam Jones, at any rate. —  Christian Science
• The labor was strenuous, and we checked off each thousand feet with thankfulness. —  The Mountains
• Her lips were taut and quivering and strenuous, his were soft, deep and delicate. —  Women in Love
• A hundred or so years ago life was very strenuous, and prejudices of people very strong. —  A Little Girl in Old Boston

Roget's II: The New Thesaurus

Allen's Synonyms and Antonyms

Used in the Same Context