[ def: without an equal or equivalent; unparalleled; being
the only existing one of its kind; remarkable and special ]

[ def: watchful, conscientious effort;
sustained carefulness;
have thought or regard ]

[ def: having thoughts, feelings, or motives
that are easily perceived or detected ]

[ def: an act of concentrating
interest, attention or activity
on something ]

[ def: achieving maximum productivity;
consistently good in quality
or performance ]

[ def: someone or something
that can be trusted or believed;
consistently good in quality or performance ]