1. With fatal consequences or implications
   "he was fatally ill equipped for the climb"
   - lethally

See also: fatal

• thick-skinned
• thick-skulled
• thick-stemmed
• thick-witted
• thicken
• thickened
• thickener
• thickening
• thicket
• thicket-forming
• thickhead
• thickheaded
• thickly
• thickly settled
• thickness
• thicko
• thickset
• thickspread
• thief
• Thielavia
• Thielavia basicola
• thieve
• thievery
• thieving
• thievish