effective
hard-hitting
impelling
impressive
rough-and-ready
telling
trenchant
able
active
adequate
authoritative
capable
charismatic
charming
competent
consequential
effectual
efficient
enchanting
equal to
estimable
functional
go
important
influential
magnetic
momentous
operational
operative
personable
persuasive
potent
powerful
practical
prestigious
productive
proficient
puissant
reputable
serviceable
strong
suasive
substantial
successful
up to
useful
virtuous
weighty
winning
effect
effectivity
efficacity
efficacy
efficiency
amenable
applicable
apt
beneficial
conclusive
drastic
favourable
feasible
forcible
helpful
objectionable
palatable
satisfactory
truthful
versatile
Ignatius
audacious
capacious
ceraceous
crustaceous
fallacious
flirtatious
gracious
hellacious
herbaceous
loquacious
mendacious
ostentatious
perspicacious
predaceous
proteinaceous
salacious
sebaceous
spacious
tenacious
vexatious
vivacious
voracious