Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb unnerve

1 sense of unnerve

Sense 1
faze, unnerve, enervate, unsettle -- (disturb the composure of)
       => upset, discompose, untune, disconcert, discomfit -- (cause to lose one's composure)

Antonyms of adj unnerving

1 sense of unnerving

Sense 1
formidable, redoubtable, unnerving -- (inspiring fear; "the formidable prospect of major surgery"; "a tougher and more redoubtable adversary than the heel-clicking, jackbooted fanatic"- G.H.Johnston; "something unnerving and prisonlike about high grey wall")

INDIRECT (VIA alarming) -> unalarming -- (not alarming; assuaging alarm)

Similarity of adj unnerving

1 sense of unnerving

Sense 1
formidable, redoubtable, unnerving -- (inspiring fear; "the formidable prospect of major surgery"; "a tougher and more redoubtable adversary than the heel-clicking, jackbooted fanatic"- G.H.Johnston; "something unnerving and prisonlike about high grey wall")
       => alarming (vs. unalarming) -- (frightening because of an awareness of danger)