otherwise; if not; or else

not the case; not so; used to express that the actual situation is different from what was previously mentioned or expected

used in rhetorical questions to express doubt or suspicion; is it possible that; could it be

no; used as a polite or formal way to disagree with what someone has just said

had better; would be better to; used to suggest an alternative course of action

(literary) displeased; unhappy; dissatisfied

(literary) to not work out; to be unfeasible; to fail to progress