Antonyms of adj two-needled
1 sense of two-needled                                                  
Sense 1
two-needled -- ((of conifers) having two needles)
INDIRECT (VIA simple) -> compound -- (composed of more than one part; "compound leaves are composed of several lobes; "compound flower heads")
Similarity of adj two-needled
1 sense of two-needled                                                  
Sense 1
two-needled -- ((of conifers) having two needles)
       => simple (vs. compound), unsubdivided -- ((botany) of leaf shapes; of leaves having no divisions or subdivisions)

