He had a definite idea of how he wanted the film to look.

She puts off painting and wallpaper, though she forms a definite idea for the little nursery.

Drawing first abstractly and without a definite idea, she will return to the work several times and refine images she sees in the primary, elemental composition.

Others, though, have more definite ideas.

He returned with very definite ideas about the kind of building he wanted and immediately announced a competition open to all architects.