intractable

• Until recently, scientists thought many ofthe problems related to CAS's were intractable--how an ecology can be sustained or an economy kept in balance, how the AIDS virus evolves in a population, how conflicts evolve in a society. —  Omni: May 1994
• To many he seemed prickly, intractable, and often he was, but as his friend Jonathan Sewall would write, Adams had “a heart formed for friendship, and susceptible to the finest feelings.” He needed friends, prized old friendships. —  John Adams by David McCullough
• A man who had—it seemed—corrupted a young niece of the Duke—he was intractable, my instructions…I—I forced him to drink poison, at pistol-point. —  TheGlassBooksoftheDreamEaters
• These ulcers are excessively intractable, there is no healing them before they eat into the bone, especially on the shins. —  The Last Journals of David Livingstone, in Central Africa, from 1865 to His Death, Volume II, 1869-1873
• The bias of his nature was intractable, and he was at last permitted to study music, at first under the charge of his uncle Joseph, the cure of Jesi, and finally at the Naples Conservatory, where he was entered at the age of sixteen. —  Great Italian and French Composers

Roget's II: The New Thesaurus

Allen's Synonyms and Antonyms

Used in the Same Context