insistant |
insistent |
Insistant is often a misspelling of insistent.
Insistant has no English definition.
As an adjective insistent is
standing or resting on something.
importunate |
insistant |
As adjectives the difference between importunate and insistant
is that
importunate is of a demand: persistent or pressing, often annoyingly so while
insistant is insistent, pressing.
As a verb importunate
is (rare) to importune, or to obtain by importunity.