un·pro·pi·tious 
(ŭn′prə-pĭshəs)
(ŭn′prə-pĭshəs)adj.
Unfavorable; inauspicious: arrived at an unpropitious moment.
un′pro·pitious·ly adv.
- subsoil
- subsoiler
- subsolar
- subsonic
- subsp.
- subspecialist
- subspecialization
- subspecialize
- subspecialty
- subspecies
- subspecific
- subst.
- substage
- substance
- substance abuse
- substance abuser
- substance P
- substance use disorder
- substandard
- substantia gelatinosa
- substantial
- substantiality
- substantially
- substantialness
- substantia nigra