1) lonely; not often visited (lonesome)
2) not often seen, found, happening etc; (of meat) cooked so that the redness and juices are kept (rare)
3) something that gives pleasure, especially not often enjoyed or unexpected; to act or behave towards (a person) in the way mentioned; to give medical or surgical care to (a person, animal) (treat)
only just; not quite; scarcely; almost no, not, never
scarcely; with difficulty
not often; rarely
infrequently
(especially) exceptionally
infrequently
