Synonyms for Unpredictable

Synonyms starting with letter S

• spasmodic
• speculative
• sporadic
• shifting
• shaky
• slippery
• skittish
• surprising

  unforeseen
• singular
• sensitive
• shifty
• sudden
• spontaneous
• stray
• startling
• staggering
• sneaky
• scatterbrained
• stubborn
• skeptical
• shilly-shally
• strange
• slick
• scattered
• serendipitous
• silly
• screwy
• shaken
• shook up
• sneaking
• shiftless
• spirited
• sprightly
• short-fuse
• slithery
• surly
• splenetic
• self-indulgent
• self-willed
• stunning