Being cautious before necessary, overly cautious, or adding an extra step to the precautionary measures one needs to take.
My father was afraid of fire & always felt the need to be precautious about putting them out if he saw one - he carried a fire extinguisher with him everywhere he went.

Sarah was a precautious person; she put on an extra layer of pads before skateboarding in case the original ones didn't hold up.

My aunt was precautious about sunburn - she wore sunscreen day and night, indoors and outdoors.
by Gatasiam January 15, 2010
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When you pull out before you enter being extra precautious
I Don’t want to spill anything so I’m going to be precautious
by Storm-w June 22, 2019
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Precautious is the cross between being cautious and preparing to take precautions - made the word up at the pub enjoy! :)
Sandra: how prepared are you to open up the pub?

Dorris: I’m being precautious
by Fat Jeff 100 July 17, 2020
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