The term "noxious" is primarily denotative, meaning it literally refers to something harmful or toxic, especially to living beings. However, it also carries connotative meanings, suggesting unpleasantness or moral repugnance, often associated with ideas, behaviors, or environments that are deemed harmful or offensive. Thus, while its primary definition is denotative, its usage can evoke strong negative connotations.
Praise
The connotative meaning of energy is powerful energetic
Fluorine is very noxious/toxic.
Do not inhale noxious gases, they are bad for you
The car's exhaust fumes are noxious!
noxious fumes are dangerous and can kill us
The connotative meaning of petite is dainty. The actual meaning is small in stature.
A table is used to eat on. That is the connotative and denotative meanings.
The connotative meaning of a word refers to what it suggests about something.
Explicit
Denotative - been around for a long time. Connotative - weak, useless, fragile