The phrase "suitable idea" is correct and usable in written English.
You could use it in a context when expressing that a certain idea or proposal is appropriate or suitable to the current situation. For example: "After discussing the matter at length, we decided that John's proposal was the most suitable idea."
But if death isn't a suitable idea to focus a novel on, then one wonders what is.
On returning to the MBA programme and a class on new venture creation essentially a business-plan writing course—he was searching around for a suitable idea for a case study.
The systematic exploitation of proven ideas or of experience was used to generate the ideas and the most suitable idea was followed as a guide for conceptual design.
For the CSI task, information fusion should be a suitable idea because it is easier to capture the tonal similarity between tracks by different kinds of descriptors and similarity functions.
In fact, when I interviewed my peers looking to become founders, the number one reason holding people back was the lack of a suitable idea.
They focus mainly on marketing strategies of universities' enormous R&D capacities and 'organize constant presentations and exhibitions' notwithstanding the fact that sometimes there is a lack of potentially suitable ideas for market promotion inside their organization.
Using this data, the web app will suggest suitable gift ideas within the target price you enter, let you go on to purchase the gift from the merchants it works with, wrap the gift and dispatch it for delivery.
Suitable handle ideas include: Leather or fabric straps.
In the biblical framework and rendering (and subsequent interpretation), the archaic stories and images acquire a different meaning, suitable to the idea of a transcendent deity and an imperfect humankind.
The suggestions outlined here are a bunch of ideas suitable for choosing from.
The music provides a suitable rhythmic impulse; an idea of exotic sexiness is in the air; and often a feeling of easily achieved brotherhood makes audiences feel good.
