Antonyms of adj ticklish

1 sense of ticklish

Sense 1
delicate, ticklish, touchy -- (difficult to handle; requiring great tact; "delicate negotiations with the big powers";"hesitates to be explicit on so ticklish a matter"; "a touchy subject")

INDIRECT (VIA difficult) -> easy -- (posing no difficulty; requiring little effort; "an easy job"; "an easy problem"; "an easy victory"; "the house is easy to heat"; "satisfied with easy answers"; "took the easy way out of his dilemma")

Similarity of adj ticklish

1 sense of ticklish

Sense 1
delicate, ticklish, touchy -- (difficult to handle; requiring great tact; "delicate negotiations with the big powers";"hesitates to be explicit on so ticklish a matter"; "a touchy subject")
       => difficult (vs. easy), hard -- (not easy; requiring great physical or mental effort to accomplish or comprehend or endure; "a difficult task"; "nesting places on the cliffs are difficult of access"; "difficult times"; "why is it so hard for you to keep a secret?")