Lest vs. Unless — What's the Difference?

For fear that

For the 2016 film version of the book, see Unless (film).Unless, first published by Fourth Estate, an imprint of Harper Collins in 2002, is the final novel by Canadian writer Carol Shields. Semi-autobiographical, it was the capstone to Shields's writing career: she died shortly after its publication in 2003.

So that someone or something not; in case someone or something might

Except on the condition that; except under the circumstances that

For fear that; that not; in order to prevent something from happening; in case.

Except for; except.

(after certain expressions denoting fear or apprehension) that (without the negative particle; introduces the reason for an emotion.)

Except on a specified condition; if not.

To listen.

If not; used with counterfactual conditionals.

Lust; desire; pleasure.

Except if; used with hypothetical conditionals.

Last; least.

Upon any less condition than (the fact or thing stated in the sentence or clause which follows); if not; supposing that not; if it be not; were it not that; except; as, we shall fail unless we are industrious.

For fear that; that . . . not; in order that . . . not.

That (without the negative particle); - after certain expressions denoting fear or apprehension.

For fear that;

That (after verbs explicitly expressing fear etc.);