Pretty limited...
This cant be your only thesaurus if youre interested in genuinely exploring the words behind a concept thats on the tip of your brain. A few common words have a nice range of suggestions, but it wasnt the kind of broad spectrum of esoteric associations implied in the picture for what Ive tried so far.
Ex: "Critical = decisive, vital" … If either of those were helpful then its seriously unlikely that a thesaurus is going to make the difference in polishing up whatever it is youre writing.
I wish I could be more specific, but I cant find the words. If only I had good thesaurus. :-/
EternalPanda81 about Nisus Thesaurus