noun, noun which may take the genitive case particle 'no'
having no plan; acting without a plan; acting impulsively
Wasei-eigo from English 'no plan'. Describes a state or action done without prior planning, often with a casual or spontaneous connotation. Can be used as a noun or with の to modify another noun.
wasei-eigo (Japanese-coined English), from no plan
I went out today with no plan.
A trip with no plan is also fun.
Variant with a middle dot; less common but seen in some contexts.
Wasei-eigo from English 'no plan'. It is wasei.