No-go and No go

No-go adjective - Not functioning properly or in suitable condition for proceeding.

No go and no-go are semantically related In some cases you can use "No go" instead an adjective phrase "No-go".

No-go and no go are semantically related in impossible topic. You can use "No-go" instead the phrase "No go" as an adjective or a noun, if it concerns topics such as impracticable, unrealistic, beyond the bounds of possibility.