Antonyms of adj trouble-free

1 sense of trouble-free

Sense 1
trouble-free -- (without problems or difficulties; "NASA reported a trouble-free launch")

INDIRECT (VIA untroubled) -> troubled -- (characterized by or indicative of distress or affliction or danger or need; "troubled areas"; "fell into a troubled sleep"; "a troubled expression"; "troubled teenagers")

Similarity of adj trouble-free

1 sense of trouble-free

Sense 1
trouble-free -- (without problems or difficulties; "NASA reported a trouble-free launch")
       => untroubled (vs. troubled) -- (not beset by troubles or disturbance or distress; "seemed untroubled by doubts of any kind"; "untroubled sleep"; "a kind untroubled face")