pas·sion·less 
(păshən-lĭs)
(păshən-lĭs)adj.
1. Lacking strong emotion or feeling: a rather passionless plea for clemency.
2. Unbiased or impartial; detached: a newspaper's passionless account of a sensational trial.
- tetrahedrite
- tetrahedron
- tetrahydrocannabinol
- tetrahydrofuran
- tetrahydroxy
- tetralogy
- tetralogy of Fallot
- tetramer
- tetrameric
- tetramerous
- tetramery
- tetrameter
- tetraplegia
- tetraplegic
- tetraploid
- tetraploidy
- tetrapod
- tetrarch
- tetrarchate
- tetrarchic
- tetrarchy
- tetrasporangium
- tetraspore
- tetrasporic
- tetratomic