cogent (adj.)

• acute
• admissible
• advantageous
• apperceptive
• astute
• auspicious
• authoritative
• beneficial
• benevolent
• binding
• bon
• bonny
• braw
• capital
• commendable
• compelling
• consequential
• consistent
• constraining
• convincing
• credible
• discerning
• dynamic
• effective
• elegant
• energetic
• estimable
• excellent
• expedient
• fair
• famous
• farseeing
• farsighted
• favorable
• fine
• forceful
• forcible
• foresighted
• forethoughtful
• good
• goodly
• grand
• healthy
• helpful
• high-powered
• high-pressure
• high-tension
• incisive
• influential
• irresistible
• just
• justifiable
• justified
• kind
• laudable
• lawful
• legal
• legitimate
• logical
• longsighted
• meaningful
• mighty
• momentous
• nice
• noble
• operative
• penetrating
• perceptive
• percipient
• perspicacious
• perspicuous
• persuasive
• piercing
• plausible
• pleasant
• potent
• powerful
• profitable
• provident
• puissant
• rational
• reasonable
• regal
• royal
• ruling
• sagacious
• sane
• satisfactory
• satisfying
• self-consistent
• sensible
• significant
• skillful
• solid
• sound
• splendid
• striking
• strong
• substantial
• sufficient
• telling
• trenchant
• understanding
• useful
• valid
• vigorous
• virtuous
• vital
• weighty
• well-founded
• well-grounded
• wholesome