nerveless (adj.)

• anemic
• asthenic
• bloodless
• calm
• castrated
• chicken
• coolheaded
• cowardly
• debilitated
• drooping
• droopy
• dull
• effete
• emasculate
• emasculated
• enervated
• etiolated
• faint
• feeble
• flabby
• flaccid
• floppy
• gelded
• gone
• gutless
• imbecile
• impotent
• languid
• languorous
• limber
• limp
• listless
• powerless
• relaxed
• rock-steady
• rubbery
• sapless
• slack
• soft
• spineless
• steady
• unblinking
• unfaltering
• unflinching
• unhardened
• unmanned
• unnerved
• unsexed
• unshaken
• unshrinking
• unstrained
• unstrung
• unwavering
• weak
• weakly