11-Letter Words Starting: IMPR

• in an impregnable manner

• a change for the better; progress in development

• the act of improving something

• a condition superior to an earlier condition

• an improper demeanor

• the condition of being improper

• an indecent or improper act

• an act of undue intimacy

• in an imprecise manner

• perform without preparation

• manage in a makeshift way; do with whatever is at hand

• not practical; not workable or not given to practical matters

• not practical or realizable; speculative

• not provident; not providing for the future

• not given careful consideration

• in an imprudent manner

• immune to attack; incapable of being tampered with

• capable of conceiving

• incapable of being overcome, challenged or refuted