・パス単：His ideas were so inane, I didn’t bother to refute them.
・単熟語EX：The actress was fed up with being asked lots of inane questions.
・パス単：Some birds have an innate tendency to mate for life.
・パス単：At first, people were incredulous but later they came to believe him.
・単熟語EX：An incredulous expression crossed her face.
・パス単：As he grew older, he became increasingly intolerant of outsiders.
・パス単：The icy desert terrain was highly inhospitable to travelers.
・単熟語EX：Their ancestors settled in an inhospitable land.
・パス単：He found his accumulating debts an intractable problem.
・単熟語EX：This book discusses the intractable problems with an aging society.
・パス単：The woman objected strongly to the detective’s intrusive questions.
・単熟語EX：They are developing lighter and less intrusive products.
・パス単：Relativity rendered some assumptions of classical physics invalid.
・パス単：The mystery novels of Arthur Conan Doyle are intricate puzzles.
・単熟語EX：The transportation system in this area is very intricate.
・パス単：The absent-minded professor almost invariably forgot to attend staff meetings.
・単熟語EX：Whenever my reason and emotion are in conflict, emotion invariably wins.