Words to Describe subfields

How subfields often is described ("________ subfields")

• distinct
• principal
• smaller
• sub
• scientific
• bit
• certain
• inhibitory
• most
• various
• newer
• many
• sociological
• empirical
• several
• specific
• relevant
• monocular
• autonomous
• specialized
• philosophical
• mathematical
• anthropological
• exciting
• disciplinary
• linguistic
• additional
• discrete
• important
• main
• identical
• disparate
• particular
• diverse
• biomedical
• fixed
• substantive
• respective
• new
• separate
• narrow
• adjacent
• related
• following
• geographic
• numerous
• topical
• concomitant
• homogeneous
• different
• traditional
• academic
• numeric
• other
• individual
• major
• oldest
• technical
• industrial
• multiple
• broad