Common words:
* efficient
* sufficient
* ancient
* patient
* different
* incipient
* transient
* deficient
* contingent
* fluent
* brilliant
* client
* obedient
* efficient
* convenient
* violent
* confident
* sentient
* proficient
* incompetent
Less common words:
* artificient
* benevolent
* cogent
* congruent
* deficient
* discerning
* discretionary
* eloquent
* eminent
* expedient
* exigent
* indifferent
* insufficient
* malevolent
* opulent
* percipient
* prescient
* resilient
* transparent
* turbulent
* ubiquitous
* vigilant
Note: The suffix "-ient" can be added to many different root words to form adjectives and nouns. The meaning of the suffix is related to the quality or state of being something. For example, "efficient" means "working well and without waste," and "ancient" means "very old."