Adjectives: Irregular

Positive	Comparative	Superlative	Type / Notes	Example
after	latter	last	Used in contrasts (former/latter)	Of the two proposals, the latter is clearer.
bad	worse	worst	Suppletive	This road is worse than the other.
before	former	foremost	Lexicalized	The former president spoke yesterday.
far	farther / further	farthest / furthest	Double system	The station is farther than I thought.
fore	former	foremost	Lexicalized comparison	The foremost expert spoke at the conference.
good	better	best	Suppletive	She gave the best answer.
hind	hinder	hindmost	Archaic/limited	The hindmost wagon broke down.
in	inner	innermost / inmost	Spatial/figurative	They reached the innermost chamber.
late	later	latest / last	Time vs sequence	This is the latest report.
little	less	least	Suppletive (amount)	We have the least time today.
many / much	more	most	Suppletive (quantity)	We need more data.
near	nearer	nearest / next	Distance vs sequence	The next train leaves soon.
old	older / elder	oldest / eldest	Family forms	My elder sister lives abroad.
out	outer	outermost / utmost	Spatial/figurative	The outermost wall collapsed.
up	upper	uppermost / utmost	Mostly attributive	The upper deck is closed.