'unimportant' also found in these entries (note: many are not synonyms or translations):
apt
- big deal
- bury
- chatter
- chickenshit
- court
- detail
- diminutive
- dinky
- dispensable
- eccentricity
- eddy
- eliminate
- featherweight
- flotsam
- frippery
- frivolous
- fuss
- futile
- gasbag
- immaterial
- indifferent
- indifferentism
- insect
- insignificant
- lay figure
- light
- loiter
- lordling
- makeweight
- marginalize
- material
- matter
- minor
- minute
- molehill
- negligible
- nice
- non-person
- nugacious
- obscure
- obscurity
- one-horse
- paramount
- pettifog
- pettifogger
- petty
- peu de chose
- pipsqueak
- punk