Traduction technique, interprétariat et coaching en anglais

You know that feeling when a word is on the tip of your tongue, you know the definition of the word, but you just can't think of the word itself? Or you have a couple of concepts in mind and just can't come up with the right word?

This happened to me today when having to translate the French word "frilosité", in the context of an event. Coldness came to mind...

I then happened upon the OneLook reverse dictionary - a great resource for just this type of problem. Hunting around a bit more, I then came across another reverse dictionary, not as good, but valuable for pinning down an elusive word.

I'm still toying with "frilosité", and letting the adjectival concepts of "uninteresting", "unfriendly" and "restrained" float around in my head. I'm sure something will come to me. Suggestions in a comment please...!