Definition of perfect
(Entry 1 of 3)
1a
: being entirely without fault or defect : flawless
a perfect diamond
b
: satisfying all requirements : accurate
c
: corresponding to an ideal standard or abstract concept
a perfect gentleman
e
: legally valid
2
: expert, proficient
practice makes perfect
b
: lacking in no essential detail : complete
d
: absolute, unequivocal
enjoys perfect happiness
e
: of an extreme kind : unmitigated
a perfect brat an act of perfect foolishness
5
: of, relating to, or constituting a verb form or verbal that expresses an action or state completed at the time of speaking or at a time spoken of
7
of a musical interval
: belonging to the consonances unison, fourth, fifth, and octave which become augmented or diminished when raised or lowered by a half step
8a
: sexually mature and fully differentiated
a perfect insect
b
: having both stamens and pistils in the same flower
a perfect flower
perfect
verb
perfected; perfecting; perfects
Definition of perfect (Entry 2 of 3)
perfect
nounDefinition of perfect (Entry 3 of 3)
: the perfect tense of a language
also
: a verb form in the perfect tense
Keep scrolling for more
Keep scrolling for more
Keep scrolling for more
Keep scrolling for more
Test Your Vocabulary
The Exceptions Quiz III
-
- Which of these words does not mean "nonsense"?

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
Anagram puzzles meet word search.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Share perfect
Time Traveler for perfect
The first known use of perfect was in the 14th century
See more words from the same century