Here are some possibilities:
If talking about sexual orientation:
* LGBTQ+: This is the most inclusive term, encompassing lesbian, gay, bisexual, transgender, queer, and other gender identities and sexual orientations.
* Non-heterosexual: This term specifically refers to anyone who is not heterosexual.
* Queer: This term has been reclaimed by many members of the LGBTQ+ community and can be used as an umbrella term for non-heterosexual identities.
* Gay: This term typically refers to men who are attracted to men.
* Lesbian: This term refers to women who are attracted to women.
* Bisexual: This term refers to people who are attracted to two or more genders.
* Pansexual: This term refers to people who are attracted to all genders.
* Asexual: This term refers to people who do not experience sexual attraction.
If talking about something that is not straight in a literal sense:
* Curved: This describes a shape that is not straight.
* Bent: This describes something that is curved or folded.
* Crooked: This describes something that is not straight and uneven.
* Wavy: This describes something that has a curved or undulating shape.
If talking about someone who is not honest:
* Dishonest: This is a general term for someone who is not truthful.
* Deceptive: This describes someone who intentionally misleads others.
* Lying: This specifically refers to the act of telling a falsehood.
Please provide more context about what you mean by "not straight" so I can give you a more accurate answer.