from left field

amazing astonishing extraordinary remarkable shocking startling stunning sudden unanticipated unforeseen unpredictable wonderful

chance electrifying

accidental fortuitous impulsive out of the blue unpredicted without warning

expected normal ordinary predictable usual

abrupt accidental amazing astonishing fortuitous startling stunning sudden swift unanticipated unforeseen unpredictable wonderful

chance electrifying eye-opening impetuous impulsive instantaneous not bargained for not in the cards out of the blue payback prodigious staggering unheralded unlooked-for unpredicted

deliberate designed expected intentional planned predictable slow

capricious chance chancy changeable fluky incalculable random uncertain unexpected unknowable

abrupt startling sudden unanticipated unexpected

accidental not bargained for out of the blue surprise uncalculated unlooked-for

expected

foreseen predictable predicted

erratic fickle uncertain unreliable unstable

capricious chance chancy dicey doubtful fluctuating fluky hanging by a thread iffy incalculable inconstant random touch and go touchy unforeseeable up for grabs variable whimsical

certain definite reliable stable steady sure unchanging

constant predictable unvarying