An anankastic conditional is a grammatical construction of the form
where Y is required in order to get X. For example:
Not all conditionals of this form have an anankastic interpretation:
where thinking about something else is not required in order to eat chocolate, but is rather advice on how to avoid eating chocolate.[2]
The term comes from the Greek ἀναγκαστικός "compulsory", from ἀνάγκη "necessity."[citation needed]
Anankastic conditionals have been argued to pose problems for compositional semantics.[3] Other semanticists have argued that anankastic conditionals can be interpreted the same way as "regular, hypothetical, indicative conditionals".[4]