Wiktionary
subtropically
adv. In a subtropical way.
Usage examples of "subtropically".
Their odor was rank, in an atmosphere once more subtropically hot, and they clutched at feet with raking twigs.
I had never been here before, but I knew that it was subtropically warm, and I figured that a city of a more than one million people was large enough for me to find a place for myself.