What is a word/idiom for ‘unable to decide’?
Is there a word to describe indecisiveness, specifically between two things? I tried online dictionaries, but did not find anything.
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2. a. To alternate or waver between different opinions or courses of action.
b. Freq. const. between.
1827 J. F. Cooper Prairie II. xiii. 217 His looks appeared to be strangely vacillating between hope and fear.
1850 J. McCosh Method Divine Govt. (ed. 2) ii. ii. 217 The superstitious man vacillates..between hope and fear, between self-confidence and despondency.
Buridan's ass refers precisely to being unable to choose between exactly two things.
The ass in question is a donkey that is equally thirsty and hungry, finds itself midway between a stack of hay and a pail of water, and, unable to make its mind up, dies of hunger and thirst.
The paradox is named after the 14th century French philosopher Jean Buridan, whose philosophy of moral determinism it satirizes. The paradox predates Buridan; it dates to antiquity, being found in Aristotle's On the Heavens. A common variant of the paradox substitutes two identical piles of hay for the hay and water; the ass, unable to choose between the two, dies of hunger.
Political cartoon ca. 1900, showing the United States Congress as Buridan's ass, hesitating between a Panama route or a Nicaragua route for an Atlantic-Pacific canal.
I can't attest to any word specifically for two things. Obviously, you could consult a thesaurus or one of many similar ELU questions. Although not the accepted answer, I think torn between offers the best fit. Note that one can be between more than two things.
I would also consider dilemma (source):
A problem offering two possibilities, neither of which is practically acceptable.
However, that deals with a more specific situation than what you're asking for.
Buridan's ass would be the opposite of a dilemma:
A hypothetical situation wherein an ass that is equally hungry and thirsty is placed precisely midway between a stack of hay and a pail of water. Since the paradox assumes the ass will always go to whichever is closer, it will die of both hunger and thirst since it cannot make any rational decision to choose one over the other.
what about ambivalence?
n. The coexistence of opposing attitudes or feelings, such as love and hate, toward a person, object, or idea.
To alternate back and forth between directly opposite opinions, ideas, or decisions.