noun, noun which may take the genitive case particle 'no'
Describes something with many aspects, sides, or facets, often used in abstract contexts like personality, problems, or systems.
He has multifaceted talents.
This problem needs to be examined from many angles.
It's important to look at the problem from many angles.
This problem has many facets.
一面 refers to just one side or aspect of something, the direct opposite of 多面's many sides or facets.
Compound of 多 (many) and 面 (face, side, surface). The reading ためん follows standard on'yomi.