upgrading is a form of:

Exorbitant



adjective
1.
(excessive, extravagant, unreasonable, outrageous, undue, overmuch) ដែលហួស ប្រមាណ, ដែលហួសកំណត់, ហួស, ដែលខុសទំនង, ដែលហួសហេតុ, ធ្វើអោយហួសកំណត់
Example: The price of food here is exorbitant
2.
(វេជ្ជសាស្ត្រ) ហួសប្រមាណ, ហួសកំណត់
ENGLISH MEANING
adjective
1.
Departing from an orbit or usual track; hence, deviating from the usual or due course; going beyond the appointed rules or established limits of right or propriety; excessive; extravagant; enormous; inordinate; as, exorbitant appetites and passions; exorbitant charges, demands, or claims.
2.
Not comprehended in a settled rule or method; anomalous.
1.
excessive, extravagant, immoderate, unreasonable