Askance
distrustfully
Attenuate
thin out, dilute, water down
Benign
benevolent, harmless
Cavil
nitpick
Charlatan
mountebank
Decimate
devastate
Foible
shortcoming, quirk
Forgo
refrain from, renounce
Fraught
charged with
Inure
accustom, acclimate
Luminous
bright, refulgent, lustrous
Obsequious
fawning, servile, , mealymouthed
Obtuse
dumb, thick, mild, dull-witted
Oscillate
vibrate
Penitent
remorseful, regretful, rueful
Peremptory
unconditional
Rebuff
repulse, reject
Reconnoiter
scout
Sporadic
occurring at irregular intervals, having no set plan or order
benign
salubrious,
obsequious
sycophantic