| keep on(verb, expression, advance, continue, extend) |
| last(verb, move, advance, continue, extend) |
| leave no stone unturned(verb, expression, idiom, advance, continue) |
| locked in(tough, sharp, difficult, wild, awkward) |
| lump |
| maintain(verb, advance, continue, extend, stick) |
| make my day(expression, idiom, disregard, ignore, challenge) |
| make out |
| manage |
| mulish(tough, sharp, difficult, awkward, practical) |
| obdurate(strong, tough, difficult, certain, definite) |
| oppose(verb, disregard, ignore, bear, challenge) |
| outdare(disregard, challenge, resist, frustrate, confront) |
| pat(tough, difficult, wild, awkward, obstinate) |
| pertinacious(tough, sharp, difficult, awkward, practical) |
| perverse(tough, sharp, difficult, awkward, practical) |
| pigheaded(tough, sharp, difficult, awkward, practical) |
| plug away(verb, expression, advance, continue, extend) |
| press on(verb, expression, advance, continue, extend) |
| prevail against(verb, expression, take, bear, endure) |