leastest
Most minimal, humorously
Leastest is a playful or childish double superlative of little, formed by adding -est to least, which is already superlative.
Children coin it naturally: I got the leastest amount of candy.
Adults use it humorously or for emphasis, aware it's nonstandard: She cared the leastest of anyone.
Least in dimension
- tiniestSmallest of all
- fewestSmallest in number
- minimumSmallest possible quantity
- slightestLeast in degree
lowest · bottom · negligible · scarcest · merest · rock-bottom
Breaking syntax rules
- incorrectNot accurate or true
- informalRelaxed, not official
- colloquialCasual, everyday language
- childishImmature in manner
playful · exaggerated · humorous · emphatic · slang · vernacular · dialectal · uneducated
smallest
Least in dimension
slightest · lowest · bottom · negligible · scarcest · merest · rock-bottom
ungrammatical
Breaking syntax rules
- incorrectNot accurate or true
- informalRelaxed, not official
- colloquialCasual, everyday language
childish · playful · exaggerated · humorous · emphatic · slang · vernacular · dialectal · uneducated · folksy
mostest
Nonstandard absolute superlative
- bestestChildish extreme superlative
- worstestNonstandard extreme superlative
- baddestSlang superlative for coolest
goodest · intensifier · redundant · emphatic · overcorrection