aspheric /ə- or ā-sferˈik/ or aspherical /-i-kəl/

1. Not spherical
2. (of a surface) not forming part of a sphere

• unspiritualizes
• unspiritualizing
• unspiritually
• unsplinterable
• unspoiled
• unspoilt
• unspoke
• unspoken
• unsporting
• unsportsmanlike
• unspotted
• unspottedness
• unspottednesses
• unsprinkled
• unsprung
• unspun
• unsquared
• unstable
• unstableness
• unstablenesses
• unstabler
• unstablest
• unstack
• unstacked
• unstacking