Word: uppermost
Part of speech: Adjective
Syllables: up
per
most
Definition: Alternative form of upper; the topmost one of two
Morphemes:
Affix: upper
Language: en
PoS: Noun
Meaning: The upper portion of something
Affix: -most
Language: en
PoS: Suffix
Meaning: Furthest; -est; used to form superlatives of certain adjectives, especially directional and inherently-comparative ones.