The superlative may be either littlest, or least. The comparative may be littler, less, or lesser.
superlative
It is the highest degree of comparison
Positive, comparative, and superlative
A superlative.
The degree of comparison is superlative. Descriptive words ending with -est are superlative forms.
The degree of comparison is superlative. Descriptive words ending with -est are superlative forms.
Longest is the superlative form.
Superlative
Sleepier is the comparative for sleepy. Sleepiest is the superlative.
Comparative: cooler or less cool (depending on the comparison) Superlative: coolest
The degree of comparison is superlative.
A superlative degree of comparison usually ends in -est E.g. John is the tallest in his class A comparative degree of comparison usually ends in -er E.g. John is taller than Eric.