Modifies a noun

• effort: Duncan took up the matter, and through his indefatigable efforts a public meeting was held in 1881.

• energy: Some of there physical antics are downright athletic, and I want to mention their indefatigable energy and focus.

• worker: Leader exhibited three paintings at the RA in 1922, at the age of ninety-one years, an indefatigable worker to the last.

• industry: He wrote inter alia: " No praise can be too high for his [ Irving's ] indefatigable scholarly industry.

• work: We have been tremendously helped in this by the indefatigable work of our Secretary, Professor Robin Cameron.

• campaigner: CPRE's planning co-ordinator in Chester is the seemingly indefatigable anti-car campaigner Ann Jones.

Modifying Another Word

• seemingly: CPRE's planning co-ordinator in Chester is the seemingly indefatigable anti-car campaigner Ann Jones.

• apparently: Although noted for her apparently indefatigable personality, closer reading of the auto/biographical material on Guggenheim also reveals her emotional weaknesses.