adjective
thematic
thih-MAT-ik/θɪˈmætɪk/
Relating to a theme or organizing subject.
The paintings share a thematic focus on different scenes of the sea.

Etymology
Thema pictured a subject as something 'set down' for discussion. Thematic describes a connection to that subject or underlying idea, rather than merely to incidental details.
In context
Von Bron's warnings as conveyed by Rosen and the tenants of Project Blue Beam share thematic similarities particularly the idea of a fabricated alien threat to achieve Global control
More examples
- Love and loss provide the thematic focus of the novel.
- The teacher uses thematic units to connect science and reading.
- The two films share a thematic concern with personal freedom.
Forms
theme noun — A central subject connecting related ideas.
thematically adverb — In relation to a central subject.
Similar words
- topical
- Refers to a particular topic, often one currently discussed.
- themed
- Describes something designed around a theme, rather than merely related.