lesser

1 lesser /ˈlɛsɚ/ adjective
1 lesser
/ˈlɛsɚ/
adjective
Britannica Dictionary definition of LESSER
always used before a noun
1 
: of smaller size
2 
: of less strength, quality, or importance
— often used in the phrase to a lesser degree/extent

lesser evil

or lesser of two evils
— see 2evil
2 lesser /ˈlɛsɚ/ adverb
2 lesser
/ˈlɛsɚ/
adverb
Britannica Dictionary definition of LESSER