HackerVoca

* : possible, workable, practicable, viable
feast : celebration, anniversary, ceremony
feat noun [countable]
something that someone does that is impressive because it needs a lot of skill, strength etc
[+ of]: a remarkable feat of engineering | perform/accomplish/achieve a feat: How did they accomplish such an extraordinary feat? | sth is no mean feat (=is difficult to do): Getting a degree is no mean feat!
: achievement, accomplishment, exploit
feeble : weak, delicate, fragile, frail // adjective

1 someone who is frail is thin and weak, especially because they are old: He was a man of about sixty, frail and bent.

2 not strongly made or built and therefore easily damaged: It seemed impossible that these frail boats could survive in such a storm.

compare fragile, unsubstantial